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Tender Value
₹1.1 Cr
EMD Value
₹1.1 L
Closing Date
22 May 2026, 6:00 pmClosed
Executive Engineer, N.P.Main Canal Dn.No.2, Gandhinagar-382010
Construction of the additional head regulator (Inverted Syphon Type) at ch. 231.588 Km of Narmada Main Canal including 5 years O&M Period.
300749
01 of 2026-27
Open
Civil - All
Works
Gandhinagar
6 documents required · 6 mandatory
₹4,248
Executive Engineer, N.P.Main Canal Dn.No.2, Gandhinagar
₹1.1 L
2 May 2026
2 May 2026
2 May 2026
22 May 2026
2 May 2026
8 Section -7 Bill of Quantities 285-297
9 Section -8 Securities and Other Forms 298-309
10 Section -9 Drawing 310-311
11 Section -10 Documents to be furnished by Bidder 312-313
INVITATION FOR BID
NATIONAL COMPETITIVE BIDDING
1. The Executive Engineer, Narmada Project Main Canal Dn.No.2, Gandhinagar invites
bids for the works detailed in the table.
The bidders may submit bids for any or all of the following works.
Sr. Name of work Approximate Bid Cost of Period of #Class of
No. value of security document completion Registration /
works (Rs.) (Rs.) (Rs.) Category of
1 Construction of the additional 1,07,64,861=50 1,08,000/- Rs.3600/- + 04 Months Class-A” and
head regulator (Inverted Syphon Rs.648/- above
Type) at ch. 231.588 Km of (18% GST)
Narmada Main Canal including
years O&M Period.
2. Prospective / Interested bidder may download the Bid Documents from website
https://tender.nprocure.com free of cost till the Time and Date as mentioned on
online NIT at website https://tender.nprocure.com
(A) The concerned Contractor/bidder shall submit the certificate of registration or
renewal receipt as approved contractor in "A & above" Class in SSNNL/NWRWS & K
Dept / R & B Dept of Gujarat State or equivalent class in CPWD/ Railway /other State
(B) The Contractor registered outside Gujarat shall apply for getting registered himself
in "A & above" class either with the Sardar Sarovar Narmada Nigam Limited or with
the state of Government of Gujarat before the date of submission of Tender. The
proof of the application for the registration shall have to be attached with the Tender
(C) The Contractor registered in CPWD / Railway and other State Govt. equivalent to
class of Gujarat mentioned above, will be eligible to quote for the Tender with the
condition that concerned Contractor shall get themselves registered in "A & above"
class in the Sardar Sarovar Narmada Nigam Limited or in the State of Gujarat on or
before the date of acceptance (approval) of his Tender.
Failure of such bidders to get themselves registered in “A & above" class either
with the Sardar Sarovar Narmada Nigam Limited or with the state of Government
of Gujarat before the date of submission of Tender, the bid of such concerned
contractor/bidder shall be rejected, and he shall be considered nonresponsive/
3. However, Bidder who is submitting the Bid Online will have to pay the Bid Document
Fee / Tender Fee through Demand Draft only of any Schedule Bank payable at
Gandhinagar and in favour of ‘Executive Engineer, Narmada Project Main Canal
Division No.2, Gandhinagar’. Once the Bid is received online, Bid Document / Tender
Fee will not be refundable.
The Demand Draft for Bid Document / Tender fee and FDR / Bank Guarantee against
Bid Security / EMD shall be submitted in electronic format through online (by
scanning) while uploading the bid, this submission shall mean that bid document /
tender fee and Bid Security / EMD has been received. Accordingly, the offer of only
those shall be opened whose Bid Document / Tender Fee and Bid Security / EMD
have been received electronically. However, for the purpose of realization of
Demand Draft, and FDR / Bank Guarantee bidder shall send the same in original
through R.P.A.D./Speed Post/Courier only so as to reach to Engineer, Narmada
Project Main Canal Division No.2, Gandhinagar within 07 days from the last day of
bid submission.
Penaltative action for not submitting Demand Draft / FDR / Bank Guarantee in
original to Executive Engineer / Tender Inviting Authority by bidder shall be initiated
as per SSNNL Circular No.CPC/Standard Bid Document/2023/1826/14
4. Bids received online, will be opened on the time, date and place as specified in the
online NIT at website https://tender.nprocure.com in the presence of the bidders or their
authorized representatives, who wish to remain present.
If the office happens to be closed on the day of opening of the bids as specified, the
bids will be opened on the next working day at the same time and venue.
5. A pre bid meeting will be held on 08-05-2026 at 1 3 : 0 0 hrs. at 5th Floor,
Committee Room, Block No.12, SSNNL, New Sachivalaya, Gandhinagar to clarify the
issues and to answer questions on any matter that may be raised at that stage as
stated in clause 9.2 of ‘instructions to Bidders’ of the bidding documents.
6. Bid Security (EMD) is equal to 1% of Estimated Amount put to bid / tender and should be
rounded off to the next thousand rupees. (The Validity of EMD should be 165 days
from the date of uploading of BG/FDR documents on e-tendering website.).
7. Other Information is as under:
A. Agencies can prepare and edit their offers a number of times before the end of the
tender submission date and time. After the tender submission date and time, the
bidder cannot modify / edit / withdraw their submitted offer in any case. No written
or online request in this regard shall be granted.
B. Offers in physical form will not be accepted in any case.
C. Demand Draft purchased by the other then bidder and issued after the last date of
submission of Bids, will not be considered or accepted.
D. The cost incurred by the contractor for this offer for clarification or attending
discussion, conferences or site visits will not be reimbursed by the Employer or
Engineer-in-Charge.
E. Conditional tender shall not be accepted.
F. Any changes, addition, alternation made in the prescribed form attached with tender
are liable to be rejected.
G. Any change in format or conditional Bank Guarantee will not be accepted and the
bidder will be considered non-responsive.
H. All the bidders are instructed to fill in information strictly in accordance with the
format given in the checklist /qualification document / tender document.
I. It is mandatory for the bidders to supply each and every information as asked strictly
in electronic format at appropriate places only.
J. Blank / insufficient information shall be treated as nil information and shall result in
disqualification.
K. Even if the bidder has been qualified in a similar or larger size of project in the past,
it shall not be deemed to be a ground / reason for not giving required information for
this work / bid.
L. Information supplied for earlier projects shall not be considered while evaluation of
this bid. The Government will not ask for any other information, unless it is found
absolutely necessary by the competent authority.
M. If found necessary, the contractor will be intimated for negotiation,
The threshold limit for the pre-qualification criteria shall be adopted as per SSNNL
circular issued vide letter No.CPC/Model Tender/Revision/2011/ 648 Pt-IIIA,
dtd.21-05-2019 which is as under
-Works of Water Resources
Above Rs.7.5 Crores
-Roads/Bridge/Building work Above Rs.7.0 Crore
-Electrical Work * Above Rs.0.5 Crore
(*) includes any or combination of providing AC plants, lifts, sound systems
of Auditorium refrigeration
For the works costing below Rs.7.5 crore for Water Resources department Works and
above Rs.7.0 crore for Road, Building and Bridge Works documents mentioned in
Section-10 shall be submitted in electronic format only through online by scanning
and also the (i) Bid Document Fee / Tender Fee (ii) Bid Security / EMD should be sent
in original to the Tender opening authority through RPAD/Speed Post/ Courier) only,
so as to reach the Executive Engineer N.P.Main Canal Dn.No.2, Gandhinagar within
days from last day of submission of Bid.
INSTRUCTIONS TO BIDDERS
Section 1: Instructions to Bidders
Table of Clauses
Page No. Page No.
A. General D. Submission of Bids
1. Scope of Bid 8 19. Sealing & Marking of Bids
2. Source of Funds 8 20. Deadline for Submission of
3. Eligible Bidders 8 21. Late Bids
4. Qualification of the 8 22. Modification and
Bidder Withdrawal of Bids
5. One Bid per Bidder
6. Cost of Bidding 12 E. Bid Opening and Evaluation
7. Site Visit 12 23. Bid Opening
B. Bidding Documents 25. Clarification of Financial
8. Content of Bidding 13 26. Examination of Bids and
Documents Determination of
9. Clarification of Bidding 13 27. Correction of Errors
10. Amendment of Bidding 14 28. Deleted
29. Evaluation and Comparison
of Financial Bids
C. Preparation of Bids 30. Deleted
11. Language of Bid
12. Documents Comprising 15 F. Award of Contract
13. Bid Prices 15 31. Award Criteria
14. Currencies of Bid and 16 32. Employer’s Right to Accept
Payment any Bid and to Reject any
15. Bid Validity 16 33. Notification of Award and
Signing of Agreement
16. Bid Security 16 34. Performance Security
17. Alternative Proposals By 17 35. Advance Payment and
Bidders Security
18. Format and Signing of Bid 17 36. Dispute Review Expert
37. Correct or Fraudulent
1. Scope of Bid
1.1 The Employer (Named in Appendix to ITB) invites bids for the Construction of works
(as defined in these documents and referred to as ‘the works”) detailed in the table
given in IFB. The bidders may submit bids for any or all of the works detailed in the
table given in IFB.
1.2 The successful bidder will be expected to complete the works by the intended
completion date specified in the Contract data.
1.3 Throughout these bidding documents, the terms ‘bid’ and ‘tender’ and their
derivatives (bidder/ tenderer, bid / tender, bidding/ tendering, etc.) are
2. Source of Funds
2.1 The expenditure on this project will be met from the budget of Govt. of Gujarat /
Govt. of India for centrally sponsored projects.
3. Eligible Bidders
3.1 This Invitation for Bids is open to all eligible bidders.
3.2 All bidders shall provide in Section 2, Forms of Bid and Qualification Information, a
statement that the Bidder is neither associated, nor has been associated, directly or
indirectly, with the consultant or any other entity that has prepared the design,
specifications, and other documents for the Project or being proposed as Project
Manager for the Contract. A firm that has been engaged by the Employer to provide
consulting services for the preparation or supervision of the works, and any of its
affiliates, shall not be eligible to bid.
4. Qualification of the Bidder
4.1 All bidders shall provide in Section 2, Forms of Bid and Qualification Information, a
preliminary description of the proposed work method and schedule, including
drawings and charts, as necessary. The proposed methodology should include a
program of construction backed with equipment planning and deployment duly
supported with broad calculations and quality assurance procedures proposed to be
adopted justifying their capability of execution and completion of work as per
technical specifications, within stipulated period of completion.
4.5 QUALIFICATION CRITERIA:
4.5.4. Personnel Capabilities.
Availability for his work of personnel with adequate experience as required; as per
4.5.5 Equipment Capabilities
Based on the studies carried out by the Engineer, the minimum suggested major equipment
to attain the completion of works in accordance with the prescribed construction schedule
are shown in the Appendix.
The bidders should, however, undertake their own studies and furnish with their bid, a
detailed construction planning and methodology supported with layout and necessary
drawings and calculations to allow the employer to review their proposals. The numbers,
types and capacities of each plant/equipment shall be shown in the proposals along with
the cycle time for each operation for the given production capacity to match the requirements
4.5.7. Deleted.
4.5.8. Litigation History
The Applicant should provide accurate information on any litigation or arbitration
resulting from contracts completed or under execution by him over the last five
years. A consistent history of awards against the Applicant or any partner of a joint
venture may result in failure of the applicant.
4.5.9. Disqualification
Even though the applicants meet the above criteria, they are subject to be
disqualified if they have:
Made misleading or false representation in the forms, statements submitted, and / or
Record of poor performance such as abandoning the work, rescinding of contract for
which the reasons are attributable to the non – performance of the contractor;
consistent history of litigation awarded against the applicant or financial failure due
to bankruptcy. The rescinding of contract of a joint venture on account of reasons
other than non – performance, such as Most Experienced partner of joint venture
pulling out, court directions leading to breaking up of a joint venture before the start
of work, which are not attributable to the poor performance of the contractor will,
however, not affect the qualification of the individual partners.
4.7. Bid Capacity.
Applicants who meet the minimum qualification criteria will be qualified only if
their available bid capacity at the expected time of bidding is more than the total
estimated cost of the works. The available bid capacity will be calculated as
Assessed Available Bid Capacity = ( A*N*2-B), where
A= Maximum value of works executed in any one year during the last five
years (updated to the price level of the year indicated in appendix) taking
into account the completed as well as works in Progress. As per the
Certificate (regarding Annual Turnover i.e Total Value of Civil engineering
construction works), issued by Chartered Accountant (in prescribed
format as Form-E)
B= Value at current price level of the existing commitments and ongoing
works to be completed during the next 04 months ( period of completion
of work for which bids are invited ) as on 30 days prior to the last date
of online submission of tender; and
N= Number of years prescribed for completion of the works for which the
bids are invited.
Note :- In Case of joint venture, the available bid capacity will be applied for each
partner to the extent of his proposed participation in the execution of the
For Value of B in Bid capacity, bidder must submit online a self-certified
copy of statement for existing commitments and ongoing works in
prescribed format.
4.8 Even though the bidders meet the above qualifying criteria, they are subject
to be disqualified if they have:
- Made misleading or false representation in the forms, statements
and Attachments the submitted in proof the qualification requirements; and
- Record of poor performance such as abandoning the works, not properly
completing the contract, inordinate delay in completion, litigation history, or
financial failures etc.; and/ or
- Participated in the previous bidding for the same work and had quoted
unreasonably high bid prices and could not furnish rational justification to
5. One bid per bidder
5.1. Each bidder shall submit only one bid for one package. A bidder who submits or
participates in more than one bid (other than as a subcontractor or in cases of
alternatives that have been permitted or requested) will cause all the proposals with
the bidder’s participation to be disqualified.
6. Cost of Bidding
6.1. The bidder shall bear all costs associated with the preparation and submission of his
Bid, and the Employer will in no case be responsible and liable for those costs.
7.1. The Bidder, at the Bidder’s own responsibility and risk is encouraged to visit and
examine the Site of work and its surrounding and obtain all information that may be
necessary for preparing the Bid and entering into a contract for construction of the
The costs of visiting the site shall be at the Bidder’s own expense.
B. BIDDING DOCUMENTS
8. Content of Bidding Documents
8.1 The set of bidding documents comprises the documents listed below and addenda
issued in accordance with Clause 10:
Section Particulars Volume No.
- Invitation for Bids I
1 Instructions to Bidders
2 Qualification Information, and other forms
3 Conditions of Contract
4 Contract Data
5 Technical Specifications II
6 Form of Bid III
7 Bill of Quantities
8 Securities and other forms
10 Documents to be furnished by bidder V
8.2. Volumes I, II, III and IV are available online and documents to be furnished by the
bidder in compliance to section 2 will be prepared by him and furnished as Volume-
V in two parts (refer clause 12).
8.3. The bidder is expected to examine carefully all instructions, conditions of contract,
contract data, forms, terms, technical specifications, bill of quantities, forms, Annexes
and drawings in the Bid Document. Failure to comply with the requirements of Bid
Documents shall be at the bidder’s own risk. Pursuant to clause 26 hereof, bids
which are not substantially responsive to the requirements of the Bid Documents
shall be rejected.
9. Clarification Bidding Documents
9.1 A prospective bidder requiring any clarification of the bidding documents may
notify the Employer in writing or through E-mail at the Employer’s address indicated
in the invitation to bid. The Employer will respond to any request for clarification
which he received earlier than 15 days prior to the deadline for submission of bids.
Employer’s response will be published on website including a description of the
enquiry but without identifying its source.
9.2. Pre-bid meeting
9.2.1. The bidder or his official representative is invited to attend a pre-bid meeting
which will take place at the address, venue, time and date as indicated in the
9.2.2. The purpose of the meeting will be to clarify issues and to answer questions on any
matter that may be raised at that stage.
9.2.3. The bidder shall be required to submit any questions in writing or e-mail to reach
the Employer not later than 03 days before the meeting.
9.2.4 Minutes of the meeting, including the question raised (Without identifying the
source of enquiry) and the responses given will be published without delay on the
tender website i.e. www.tender.nprocure.com. Any modification of the
bidding documents listed in sub-Clause 8.1 which may become necessary as a
result of the pre-bid meeting shall be made by the Employer exclusively through
the issue of an Addendum pursuant to Clause 10 and not through the minutes of
the pre-bid meeting.
9.2.5. Non-attendance at the pre-bid meeting will not be a cause for disqualification of a
10. Amendment of Bidding Documents
10.1 Before the deadline for submission of bids, the Employer may modify the bidding
documents by issuing addenda.
10.2. Any addendum thus issued shall be part of the bidding documents. The Employer
will assume no responsibility for the same.
10.3. To give prospective bidders reasonable time in which to take an addendum into
account in preparing their bids, the Employer may, at his discretion, extend as
necessary the deadline for submission of bids, in accordance with Sub-Clause
C. PREPARATION OF BIDS
11. Language of the Bid
11.1 All documents relating to the bid shall be in the English language.
12. Documents Comprising the Bid
12.1. The bid be submitted by the bidder as Volume V of the bid document (refer Clause
8.1) shall be in two separate parts:
Part I shall be named “Preliminary Stage” and shall comprise
(i) Bid Security in the form specified in Section
(iii) Certificates, undertakings, affidavits as specified in Section-2
(iv) Any other information pursuant to Clause 4.5 of these instructions
(v) Undertaking that the bid shall remain valid for the period specified in
Part II shall be named “Financial Bid” and shall comprise
(i) Form of Bid as specified in Section
(ii) Priced Bill of Quantities for items specified in Section
12.2. The Bidder shall submit the details / information pertaining to each part i.e.
preliminary as well as financial and must be submitted online only.
12.3. Following documents will be deemed to be part of the bid.
Section Particulars Volume No.
Invitation for Bids (IFB)
1 Instruction to Bidders
3 Conditions of Contract
4 Contract Data
5 Specifications Volume II
9 Drawings Volume IV
13.1 The Contract shall be for the whole works as described in Sub-Clause 1.1, based on
the priced Bill of Quantities submitted by the Bidder.
13.2 The bidder shall fill in rates and prices and line item total (both in figures and words)
for all items of the Works described in the Bill of Quantities along with total bid price
(Both in figures and words). Items for which no rate or price is entered by the bidder
will not be paid for by the Bill of Quantities.
13.3 All duties, taxes, and other levies except GST payable by the contractor under the
contract, or for any other cause shall be included in the rates, prices and total Bid
Price submitted by the Bidder. (GST will be paid extra)
13.5 The rates and prices quoted by the bidder are subject to adjustment during the
performance of the Contract in accordance with the provisions of Clause 47 of the
Condition of Contract (Irrespective of the time limit and Bid Amount)
14. Currencies of Bid and Payment
14.1 The unit rates and the prices quoted by the bidder shall be entirely in Indian Rupees.
All payments shall be made in Indian Rupees.
15. Bid Validity
15.1 Bids shall remain valid for a period of not less than 120 days after the deadline date
forbid submission specified in Clause
15.2 In exceptional circumstances, prior to expiry of the original time limit, the Employer
may request that the bidders may extend the period of validity for a specified period.
A bidder may refuse the request without forfeiting his bid security. A bidder agreeing
to the request will not be required or permitted to modify his bid, but will be
required to extend the validity of his security for a period of the extension, and in
compliance with Clause 16 in all respects.
16. Bid Security
16.1. The Bidder shall furnish, as part of his Bid, a Bid security in the amount as shown in
column 4 of the table of IFB for this particular work. This Bid security shall be in
favor of Executive Engineer, Narmada Project Main Canal Dn.No.2, Gandhinagar
in Appendix and may be in one of the following forms;
a. Bank Guarantee from any scheduled Indian bank, in the format given in
Volume III. (Bank Guarantee is applicable only for Bid Estimated Amount of
Crore and above) and Bank Guarantee of Schedule and Private Banks shall be
considered as per GoG Finance Department’s Circular No. FD/MSM/e-
file/4/2024/2859/D.M.O. Date 01/05/2025 or as per their latest amendment.
b. Fixed Deposit Receipt issued by any Scheduled Indian Bank or a foreign Bank
approved by the Reserve Bank of India.
A Valid Bid Security / EMD Exemption Certificate issued by (1) Road & Building
Department or (2) Narmada Water Resources, Water Supply and Kalpsar
Department of Govt of Gujarat. Exemption Certificate is applicable only when
Registration Certificate of Appropriate Class and Category of Approved
Contractors is required as eligible criteria of bidder.
16.2. Bank guarantees (and other instruments having fixed validity) issued as surety for
the bid shall be valid for 45 days beyond the validity of the bid i.e. total validity of
16.3. Any bid not accompanied by an acceptable Bid Security and not secured as
indicated in Sub-Clauses 16.1 and 16.2 above shall be rejected by the Employer as
non-responsive.
16.4. The Bid Security of unsuccessful bidders will be returned within 28 days of the end
of the bid validity period specified in Sub-Clause
16.5 The Bid Security of the successful bidder will be discharged when the bidder has
signed the Agreement and furnished the required Performance Security.
16.6. The bid Security may be forfeited
(a) If the Bidder withdraws the bid after Bid opening during the period of Bid
(b) If the Bidder does not accept the correction of the Bid Price, if any or
(c) In the case of a successful Bidders, if the Bidder fails the specified time limit to
(i) Sign the Agreement; or
(ii) Furnish the requirement Performance Security.
(d) If found necessary, the bidder will be intimated for negotiation, He will be
intimated maximum three times within the validity period for negotiation, If
contractor does not respond in time, his Bid Security (EMD) will be forfeited and his
tender will be rejected. Punitive action will be taken on such contractors. (As per GoG
R&B Dept’s Gr. No. S/22/2017/639/D, Dt.08/06/2018)
17. Alternative Proposals by Bidders.
17.1. Bidders shall submit offers that fully comply with the requirements of the bidding
documents, including the conditions of contract (including mobilization advance or
time for completion), basic technical design as indicated in the drawing and
specifications. Conditional offers or alternative offers will not be considered further
in the process of tender evaluation.
18. Format and Signing of Bid
18.1. The Bidder shall prepare documents comprising the bid as described in Clause 12 of these
Instructions to bidder as the “Preliminary Stage “and “Financial Bid” in separate parts to
D. SUBMISSION OF BIDS
20. Deadline for Submission of the Bids
20.1. Complete Bids must be received online by the Employer at the tender website
specified above not later than the date indicated in appendix.
20.2. The Employer may extend the deadline for submission of bids by issuing an
amendment in accordance with Clause 10, in which case all right and obligation of
the Employer and the bidders previously subject to the original deadline will then be
subject to the new deadline.
22. Modification and Withdrawal of Bids
22.1. Bidders may modify or withdraw their bids online before the deadline prescribed in
Clause 20 or pursuant to Clause
22.3. No bid shall be modified or withdrawn after the deadline for submission of Bid.
22.4. Withdrawal or modification of a bid between the deadline for submission of bids
and the expiration of the original period of bid validity specified in Clause
above or as extended pursuant to Clause 15.2 may result in the forfeiture of the Bid
security pursuant to Clause
E. BID OPENING AND EVALUATION
23. Bid Opening
23.1 The Employer will open all the Bids received including modifications made pursuant
to Clause 22, in the presence of the Bidders or their representatives who choose to
attend at time, date and the place specified in Appendix in the manner specified in
Clauses 20 and 23.3, In the event of the specified date of Bid opening being declared
a holiday for the Employer, the Bids will be opened at the appointed time and
location on the next working day.
23.3 The “Preliminary Stage” shall be opened. The amount, form and validity of the bid
security furnished with each bid will be announced. If the bid security furnished does
not conform to the amount and validity period as specified in the invitation for bid
(ref. Column 4 and paragraph 3), and has not been furnished in the form specified in
Clause 16, the financial bid will not be opened.
23.4 (i) Deleted.
23.6 At the time of opening of “Financial Bid”, the names of the bidders were found responsive
in accordance with Clause 23.3 will be announced. The bids of only these bidders will be
opened. The responsive Bidders’ names, the Bid prices, the total amount of each bid, any
opened. The responsive Bidders’ names, the Bid prices, the total amount of each bid, any
discount and such other details as the Employer may consider appropriate, will be
announced by the Employer at the opening.
23.7 At the time of opening of “Financial Bid”, the names of the bidders were found
responsive in accordance with Clause 23.3 will be announced. The bids of only these
bidders will be opened. The responsive Bidders’ names, the Bid prices, the total
amount of each bid, any discount, and such other details as the Employer may
consider appropriate, will be announced by the Employer at the opening.
23.8 In case bids are invited for more than one package, the order for opening of the
“Financial Bid” shall be in order of Estimated amount of Bids from highest to lowest.
23.9 The Employer shall prepare minutes of the Bid opening, including the information
disclosed to those present in accordance with Sub-Clause 23.6.
24.1 Information relating to the examination, clarification, evaluation, and comparison of
Bids and recommendations for the award of a contract shall not be disclosed to
Bidders or any other persons not officially concerned with such process until the
award to the successful Bidder has been announced. Any effort by Bidder to
influence the Employer’s processing of Bids or award decisions may result in the
rejection of his Bid.
25. Clarification of Financial Bids
25.1. To assist in the examination, evaluation, and comparison of Bids, the Employer may,
at his discretion, ask any Bidder for clarification of his Bid, including breakdowns of
unit rates. The request for clarification and the response shall be in writing or by e-
mail, but no change in the price or substances of the Bid shall be sought, offered, or
permitted except as required to confirm the correction of arithmetic errors
discovered by the Employer in the evaluation of the Bids.
25.2 Subject to sub-clause 25.1, no Bidder shall contact the Employer on any matter
relating to his Bid opening to the contract is awarded. If the Bidder wishes to bring
additional information to the notice of the Employer, it should do so in writing.
25.3. Any effort by the Bidder to influence the Employer in the Employer's bid evaluation,
bid comparison or contract award decision may result in the rejection of the Bidders’
26. Examinations of Bids and Determination of Responsiveness
26.1 During the detail evaluation of "Preliminary Stage", the Employer will determine whether
each Bid (a) meets the eligibility criteria defined in Clause 3 and 4; (b) has been properly
signed; (c) is accompanied by the required securities and; (d) is substantially responsive to
the requirements of the Bidding document. During the detailed evaluation of the “Financial
Bid”, the responsiveness of the bids will be further determined with respect to the
remaining bid conditions, i.e., priced bill of quantities, technical specifications, and
26.2 A substantially responsive “Financial Bid” is one which confirms all the terms,
conditions and specifications of bidding documents, without material deviation or
reservation. A material deviation or reservation is one (a) which affects in any
substantial way the scope, quality, or performance of the Works; (b) which limits in
any substantial way, inconsistent with the Bidding documents, the Employer’s rights
or the Bidder’s obligations under the Contract; or (c) whose rectification would affect
unfairly the competitive position of other Bidders presenting substantially
responsive Bids.
26.3 If a “Financial Bid” is not substantially responsive, it will be rejected by the
Employer, and may not subsequently be made responsive by correction or
withdrawal of the non-conforming deviation or reservation.
29. Evaluation and Comparison of Financial Bids
29.1. The Employer will evaluate and compare only the Bids determined to be
substantially responsive in accordance with Sub-Clause 26.2.
29.3. The Employer reserves the right to accept or reject any variation or deviation.
Variation and deviations and other factors, which are in excess of the requirements
of the Bidding documents or otherwise result in unsolicited benefits for the
Employer, shall not be taken in to account in Bid evaluation.
29.4. The estimated effect of the price adjustment conditions under Clause 47 of the
Conditions of Contact, during the period of implementation of the Contract, will not
be taken in to account in Bid evaluation.
29.5. If the Bid of the successful Bidder is seriously unbalanced in relation to the
Engineer’s estimate of the cost of work to be performed under the contract the
Employer may require the Bidder to produce detailed consistency of those prices
with the construction methods and schedule proposed. After evaluation of the price
analyses, the Employer may require that the amount of the performance security set
forth in Clause 34 be increased at the expense of the successful /bidder to a level
sufficient to protect the Employer against financial loss in the event of default of the
successful Bidder under the Contract.
29.6. A bid which contains several items in the bill of Quantities which are unrealistically
priced low and which cannot be substantiated satisfactorily by the bidder may be
rejected as non-responsive.
F. AWARD OF CONTRACT
31. Award Criteria
31.1. Subject to Clause 32, the Employer will award the contract to the Bidder whose Bid
has been determined.
(i) to be substantially responsive to the Bidding documents and who has offered
the lowest evaluated Bid Price; and
(ii) to be within the available bid capacity adjusted to account for his bid price
which is the lowest evaluation in any of the packages opened earlier than the
one consideration.
In no case, the contract shall be awarded to any bidder whose available bid
capacity is less than the evaluated bid price, even if the said bid is the lowest
evaluated bid. The contract will in such cases be awarded to the next lowest bidder
at his evaluation bid price.
32. Employer’s Right to Accept any Bid and to Reject any or all Bids
32.1. Notwithstanding Clause 31, the Employer reserves the right to accept or reject any
Bid, and to cancel the Bidding process and reject all Bids, at any time prior to the
award of contract, without thereby incurring any liability to the affected bidder or
Bidder or any obligation to inform the affected Bidder or Bidders of the grounds for
the Employer’s action.
33. Notification of Award and Signing of Agreement
33.1. The Bidder whose Bid has been accepted will be notified of the award by the
Employer prior to expiration of the Bid validity period by cable, telex or facsimile
confirmed by registered letter. This letter (hereinafter and in the condition of
contract called the “Letter of Acceptance”) will state the sum that the Employer will
pay the Contractor in consideration of the execution, completion, and maintenance of
the Works by the Contractor as prescribed by the Contract (hereinafter and in the
Contract called the “Contract Price”).
33.2 The notification of award will constitute the formation of the contract, subject only to
the furnishing of a performance security in accordance with the provisions of Clause.
33.3. The Agreement will incorporate all agreements between the Employer and the
successful Bidder. It will be signed by the Employer and to the successful Bidder,
within 28 days following the notification of award along with the Letter of
Acceptance. Within 21 days of receipt, the successful Bidder will sign the Agreement
and deliver it to the Employer.
33.4. Upon the furnishing by the successful Bidder of the Performance Security, the
Employer will promptly notify the other Bidders that their Bids have been
34. Performance Security
34.1. (A) Within 10 (Ten) days of receipt of Letter of Acceptance, the successful Bidder
shall furnish to the Employer an irrevocable and unconditional guarantee from a
Bank in the form set forth in Section 8 (the “Performance Security”) for an
amount equal to 5% (five percent) of its Contract Price. In case of bids
mentioned below, the successful Bidder, along with the Performance Security,
shall also furnish to the Authority an irrevocable and unconditional guarantee
from a Bank in the same form given at Section 8 towards an Additional
Performance Security (The “Additional Performance Security”) for an amount
calculated as under:
(a) If the Contract Price offered by the Selected Bidder is lower than 10% but
upto 20% of the Estimated Project Cost, then the Additional Performance
Security shall be calculated @ 20% of the difference in the (i) Estimated
Project Cost (as mentioned in Bid Document) - Minus 10% of the
Estimated Project Cost and (ii) Contract Price offered by the selected
(b) If the Contract Price offered by the Selected Bidder is lower than 20% of
the Estimated Project Cost, then the Additional Performance Security
shall be calculated @ 30% of the difference in the (i) Estimated Project
Cost (as mentioned in Bid Document) - Minus 10% of the Estimated
Project Cost and (ii) Contract Price offered by the selected Bidder.
(c) This Additional Performance Security shall be treated as part of the
Performance Security.
(B) The Performance Security shall be valid beyond 60(sixty) days of the Defects
Liability Period and the Additional Performance Security shall be valid
beyond 28 (twenty-eight) days of Project Completion Date.
34.2. If the performance security is provided by the successful Bidder in the form of a
Bank Guarantee, it shall be issued either (a) at the Bidder’s option, by a
Nationalized/Scheduled Indian bank or (b) by a foreign bank located in India and
acceptable to the Employer. As per GoG Finance Department’s Circular No.
FD/MSM/e- file/4/2024/2859/D.M.O. Date 01/05/2025 or as per their latest
34.3. Failure of the successful Bidder to comply with the requirement of Sub-Clause
shall constitute sufficient grounds for cancellation of the award and forfeiture of
the Bid Security.
35 Advance Payment and Security
35.1 The Employer will provide an Advance payment on the Contract Price as stipulated
in the Conditions of Contract, subject to maximum amount, as stated in the
37. Corrupt of Fraudulent Practices
37.1 The Employer will reject a proposal if it determines that the Bidder recommended
for award has engaged in corrupt or fraudulent practices in completing for the
contract in question and will declare the firm ineligible, either indefinitely or for a
stated period of time, to be awarded a contract with National Highways Authority of
India/ State PWD and any other agencies, if it at any time determines that the firm
has engaged in corrupt or fraudulent practices in completing for the contractor, or
37.2 Furthermore, Bidders shall be aware of the provision stated in Sub- Clause 59.2 of
the Conditions of Contract.
APPENDIX TO ITB
Clause Reference With
respect to Section –I
1. The Name of the Employer is Executive Engineer, Narmada [ Cl.1.1]
Project Main Canal Dn.No.2, Gandhinagar
2. The last five financial years.
3. Deleted [Cl.4.5.3 (a)]
4. Value of Work is Rs.1,07,64,861=50
6. The cost of electric work is Rs.90,285=50
7. The cost of water supply / sanitary works is Rs…….
8. Deleted [Cl.4.5.6 ]
9. Price level of the financial year 2026-2027 [Cl. 4.5.2]
10. The pre-bid meeting will take place : 5th Floor, Committee Room, [Cl. 9.2.1]
Block No.12, SSNNL, New Sachivalaya, Gandhinagar
12. Address of the Employer: Block No.12, 9th Floor, New
Sachivalaya, Gandhinagar
14. The bid should be submitted latest by [Cl. 20.1 & 20.2]
As stated on online NIT
15. The bid will be opened at Executive Engineer, N.P.Main Canal [Cl. 23.1 ]
Dn.No.2, Gandhinagar
The Bank on online
Draft NIT of Executive Engineer, N.P.Main Canal
Dn.No.2, Gandhinagar.
18. Escalation factors (for the cost of works [Cl.4.5.2]
executed and financial figure to a common base
value) for works completed
Year Financial Year Multiplying factor
Base year of inviting tender 2026-2027
LIST OF KEY PLANT & EQUIPMENT TO BE DEPLOYED ON CONTRACT WORK
[Reference CL. 4.5.5]
The contractors shall also give a list of machineries in his possession and which they
propose to use on the work.
Sr. Plant or Location Age of Make Capacity Approximate Remark
No. Machinery Machinery Value
List of Key Personnel to be deployed on Contract Work
(Reference Cl. 4.5.4)
Employment of a qualified site Engineer by the Contractor.
The Contractor shall employ full-time technically qualified staff during the execution of this
work as under: -
1. Two graduate Civil Engineers and three diploma Civil Engineers when cost of the work
to be executed is more than Rs.50 lakhs.
2. One graduate & two Diploma, Civil Engineers when the cost of the work to be executed
is more than Rs.15 lakhs but less than Rs.50 lakhs.
3. Minimum Two Diploma Civil Engineer when the cost of work is less than Rs.15 lakhs
but more than Rs.5 lakhs.
4. Minimum One Diploma Civil Engineers for the work when the cost of work to be
executed is less than Rs. 5 lakhs. The Engineer so employed for the Government work
must have sufficient experience to handle the work independently. Such an Engineer
shall have to stay at the site of work and he shall not be entrusted with other duty
except this work.
In case the contractor or partner of the contractor firm is a Civil Graduate Engineer,
Employment of a separate Engineer will not be necessary provided that the Engineer
partner himself attends the execution of the work on the site.
Within 15 days of issue of work-order the Contractor will have to furnish to the
Deputy Executive Engineer-in-charge of the work the Name, Qualifications, copy of
marksheet, Color Photograph and the appointment order issued such engineers
engaged for this contract work. If 15 days after issue of work order such designated
Site Engineers do not resume or do not remain present on site of work, the recovery at
the rate of Rs.15,000-00 per month per Engineer will be made from the
bills/deposit/dues of the contractor. Such recovery shall be non-refundable.
QUALIFICATION INFORMATION
QUALIFICATION INFORMATION
The information to be filled in by the Bidder in the following pages will be used for
the purpose of post qualification as provided for in Clause 4 of the Instruction to Bidders.
This information will not be incorporated in the Contract.
1. For Individual Bidders
1.1 Constitution or legal status of Bidder
Place of registration
Principal place of business
Power of attorney of signatory of Bid
1.2 Total value of Civil engineering constructions 2021-2022
Works performed in the last five years (in Rs.
1.4 Information on Bid Capacity (works for which bids have been submitted and works
which are yet to be completed) as on the date of this bid.
(A) Existing commitments and on-going works:
Descriptio Place Contract Name & Address Value Contract Stipulated Value of Anticipated
n of works & State No. of (Rs. Cr) Period of Works* of
Employer Completio remaining completion
*Attach certificate (s) from the Engineer(s) in-charge
** Immediately preceding the financial year in which bids are received.
1.5 Availability of key items of Contractors Equipment for carrying out the works (Ref.
Clause 4.5.5). The Bidder should list all the information requested below.
Item of Requirement Availability Proposals Remarks
Equipment NO Capacity Owned/ Nos/. Age/ (from
Leased to be Capacity Conditions whom to
1.6 Qualifications and experience of key personnel required for administration and
execution of the contract. Attach biographical data. Refer also to Sub Clause 9.1 of
the Conditions of Contract.
Position Name Qualification Experience
Project Manager
1.7 Proposed sub-contract and firms involved
Sections of the Value of Sub- Experience in
works Contractor similar work
Attach copies of certificates on possession of valid license for executing water
supply/ sanitary work/ building electrification works.
1.10 Name, address, and telephone, telex, and fax numbers of the Bidders bankers who
may provide references if contacted by the Employer.
1.11 Information on Litigation history in which the Bidder is involved.
Other Party Employer Cause of Amount Remarks
(ies) Dispute Involved showing
1.12. Statement of compliance under the requirements of Sub Clause 3.2 of the instruction
to Bidders. (Name of Consultant engaged for project preparations is * ........................... )
1.13 Proposed work method and schedule. The Bidder should attach descriptions,
drawings and charts as necessary to comply with the requirements of the Bidding
documents. (Refer ITB Clause 4.1)
3. Additional Requirements
3.1 Bidders should provide any additional information required to fulfill the
requirements of Clause 4 of the Instructions to the Bidders, if applicable.
* Fill the name of Consultant
1. I, the undersigned, do hereby certify that all the statements made in the required
attachments are true and correct.
2. The undersigned also hereby certifies that neither our firm M/s.
have not abandoned any work of
Government of Gujarat/Government of India/any Board or Corporation under
Government of Gujarat/Government of India nor any contract awarded to us for
such works have been rescinded, during last five years prior to the date of this
3. The undersigned hereby authorize(s) and request (s) any bank, person, firm or
corporation to furnish pertinent information deemed necessary and requested by
the Department to verify this statement or regarding any (our) competence and
general reputation.
4. The Undersigned understands and agrees that further qualifying information
may be requested, and agrees to furnish any such information at the request of
the Department/ Project implementing agency.
(Signed by an Authorized Officer of the Firm)
Title of Officer
SAMPLE FORMAT FOR ANNUAL TURNOVER CERTIFICATE
(REGARDING TOTAL VALUE OF CIVIL ENGINEERING CONSTRUCTION WORKS
PERFORMED IN THE LAST FIVE YEARS)
(CLAUSE 4.5.3 (a) OF ITB & Clause 1.2 of Q.1)
This is to certify that we have verified Books of Account of M/s. __________________________
has registered as Civil Construction Firm and achieved the following Gross Annual
Turnover from Construction Activity for Last five financial years is as under:
Civil Engineering
Other Business Add GST Turnover
Sr.No. FinancialYear Construction works
Turnover (in Rs) Value(in Rs) including GST
Turnover(in Rs)
We have verified the above facts and figures from the Audited Books of the Firm or the
Audited Balance sheet and other relevant authentic records of the firm, for the last five
financial years and certify the same as True.
(Signature & stamp of the Chartered Accountant)
In above Form, the details given in above form is given in any other format but
containing a, b & c in same wording then the format shall be considered for
If any tender is to be opened between 1st April and 30th September, then their
provisional certificate of previous financial year shall be considered for
CONDITIONS OF CONTRACT
Conditions of Contract
Table of Contents
A General Page D. Cost Control
1 Definitions 37 37 Bill of Quantities
2 Interpretation 38 38 Changes in the Quantities
3 Language and Law 39 39 Variations
4 Engineer’s Decisions 39 40 Payments for Variations
5 Delegations 39 41 Cash Flow Forecasts
6 Communications 39 42 Payment Certificates
7 Sub-Contractors 39 43 Payments
8 Other Contractors 39 44 Compensations Events
9 Personnel 40 45 Tax
10 Employer’s & Contractor Risk 40 46 Currencies
11 Employers Risks 40 47 Price Adjustment
12 Contractor’s Risk 40 48 Retention
13 Insurance 40 49 Liquidated damages
Site Investigations Reports 41 50 Bonus
15 Queries about the Contract 41 51 Advance Payment
16 Contractors to Construct the 41 52 Securities
17 The Works to be Completed By 41 53 Deleted
the Intended Completion Date
18 Approval by the Engineer 41 54 Cost of Repair
20 Discoveries 42 E. Finishing the Contract
21 Possession of the Site 42 55 Completion
22 Access to the Site 42 56 Taking Over
23 Instructions 42 57 Final Account
24 Disputes 42 58 Operating and Maintenance
25 Procedure for Disputes
26 Deleted 43 59 Terminations
60 Payment upon Terminations
B. Time Control 61 Property
27 Programme 44 62 Release from Performance
28 Extensions of the Intended
completion date
29 Deleted 44 F. Special Conditions of
30 Delays Ordered by The 44 63 Labour
Engineer 64 Compliance with labour
31 Management Meetings 45 65 Arbitration
32 Early Warning
C. Quality Control
33 Identifying Defects
35 Correction of Defects
36 Uncorrected Defects
CONDITIONS OF CONTRACT
1.1 Terms which are defined in the Contract Data are not also defined in the Conditions
of Contract but keep their defined meaning.
Bill of Quantities means the priced and completed Bill of Quantities
forming part of the Bid
Compensation Events are those defined in Clause 44 hereunder
The Completion Date is the date of completion of the Works as certified by
the Engineer in accordance with Sub Clause
The Contract is the contract between the Employer and Contractor to
execute, complete and maintain the Works till the completion of Defects
Liability Period. It consists of the documents listed in Clause 2.3 below.
The Contract data defines the documents and other information which
comprise the Contract.
The Contractor is a person or corporate body whose Bid to carry out the
Work has been accepted by the Employer.
The Contractor’s Bid is the completed Bidding document submitted by the
Contractor to the Employer and includes Technical and Financial Bids.
The Contract Price is the price stated in the Letter of Acceptance and
thereafter as adjusted in accordance with the provisions of the Contract.
Days are calendar days: months are calendar months.
The Defects Liability Period is the period named in the Contract Data and
calculated from the Completion Date.
The Employer is the party who will employ the Contractor to carry out the
The Engineer is the person named in the Contract Data (or any other
competent person appointed and notified to the contractor to act in replacement of
the Engineer) who is responsible for supervising the Contractor, administering the
Contract, certifying payments due to the Contractor, issuing and valuing Variations
to the Contract, awarding extensions of time, and valuing the Compensations
While dealing with the financial approval and items like extra items, quantity
variations and other such proposals involving the finance where the terms should
mean the competent authority under the organization having competency to deal
with and approve such cases.
Equipment is Contractor’s machinery and vehicles brought temporarily to
the site to construct the Works.
The Initial Contract Price is the Contract Price listed in the Employer’s
Letter of Acceptance.
The Intended Completion Date is the date on which it is intended that the
Contractor shall complete the Works. The Intended Completion Date is specified in
the Contract Data. The Intended Completion Date may be revised only by the
Engineer by issuing an extension of time.
Materials are all supplies, including consumables, used by the contractor for
incorporation in the works.
Plant is any integral part of the work which is to have mechanical, electrical,
electronic or chemical or biological functions.
The Site is the area defined as such in the Contract Data.
Site Investigation Reports are those which were included in the Bidding
documents and are factual interpretive reports about the surface and subsurface
conditions at the site.
Specifications means the Specifications of the works included in the Contract
and any modification or addition made or approved by the Engineer.
The Start Date is given in the Contract Data. It is the date when the
Contractor shall commence execution of the works. It does not necessarily coincide
with any of the Site Possession Dates.
A Subcontractor is a person or corporate body who has a Contract with the
Contractor to carry out a part of the work in the Contract which includes work on the
Temporary Works are works designed, constructed, installed, and removed
by the Contractor which are needed for construction or installation of the Works.
A Variation is an instruction given by the Engineer, which varies the Works.
The Works are what the Contract requires the Contractor to construct, install,
and turn over to the Employer, as defined in the Contract Data.
2. Interpretation
2.1 In interpreting these Conditions of Contract, singular also means plural, male
also means female or neuter and the other way around. Heading have no
significance. Words have their normal meaning under the language of the
Contract unless specifically defined. The Engineer will provide instructions
clarifying queries about Conditions of Contract.
2.2 If sectional completion is specified in the Contract Data, references in the
Conditions of Contract to the Works, the Completion date, and Intended
Completion Date apply to any Section of the Works (other than references to
the Completion Date and Intended Completion date for the whole works)
2.3 The documents forming the Contract shall be interpreted in the following
order of priority
(2) Letter of Acceptance, notice to proceed with works
(3) Contractor’s Bid
(4) Contract Data
(5) Conditions of Contract including Conditions of Contract
(6) Specifications
(8) Bills of quantities and
(9) Any other document listed in the Contract Data as forming part of the
3. Language and Law
3.1 The language of the Contract and the law governing the Contract are stated in
the Contract Data.
4. Engineers Decisions
4.1 Except where otherwise specifically stated, the Engineer will decide
contractual matters between the Employer and the Contractor in the role
representing the Employer. The Engineer shall obtain approval of competent
authority if needed as per delegation of powers of SSNNL.
5.1 The Engineer may delegate any of his duties and responsibilities to other
people after notifying the Contractor and may cancel any delegation after
notifying the Contractor.
6. Communications
6.1 Communications between parties which are referred to in the conditions are
effective only when in writing. A notice shall be effective only when it is
delivered (in terms of Indian Contract Act).
7. Sub-Contracting
7.1 The Contractor may subcontract any portion of work, up to a limit specified in
contract data, with the approval of the engineer but may not assign the
Contract without the approval of the Employer in writing. Subcontracting
shall not alter the Contractor’s obligations. Sub-contracting of supply or
specific items of work is not allowed.
7.2 The sub-contractor must be registered in appropriate class and category for
the part of work to be subcontracted.
8. Other Contractors
8.1 The Contractor shall cooperate and share the Site with other contractors,
public authorities, utilities and the Employer between the dates given in the
Schedule of other Contractor. The Contractors shall as refer to in the Contract
Data, also provide facilities and services for them as described in the
Schedule. The employer may modify the schedule of other contractors and
shall notify the contractor of any such modifications.
9.1 The Contractor shall employ the key personnel named in the Schedule of Key
Personnel as referred to in the Contract Data to carry out the functions stated
in the Schedule or other personnel approved by the Engineer. The Engineer
will approve any proposed replacement of key personnel only if their
qualifications, abilities, and relevant experience are substantially equal to or
better than those of the personnel listed in the Schedule.
9.2 If the engineer asks the Contractor to remove a person who is a member of
the Contractor Staff or his work force stating the reasons the Contractor shall
ensure that the person leaves the Site within seven days and has no further
connection with the work in the Contract.
10. Employer’s and Contractors Risks
10.1 The Employer carries the risk which these Contract states are Employer’s
risks, and the Contractor carries the risks which these Contracts states are
Contractors risk.
11. Employer’s Risks
11.1 The employer is responsible for the excepted risks which are (a) in so far as
they directly affect the execution of the Works, the risks of war, hostilities,
invasion, act of foreign enemies, rebellion, revolution, insurrection or military
or usurped power, civil war, riot commotion or disorder (unless restricted to
the Contractor’s employees), and contamination from any nuclear fuel or
nuclear waste or radioactive toxic explosive.
12. Contractor’s Risks
12.1 All risks of loss of or damages to physical property and of personal injury and
death which arise during and in consequence of the performance of the
Contract other than the excepted risks are the responsibility of the
13.1 The Contractor shall provide, in the joint names of the Employer and the
Contractor, insurance cover from the Start date to the end of the Defects
Liability Period, in the amounts and deductibles stated in the Contract data
for the following events which are due to the Contractor’s risks:
(a) Loss of or damage to the works, Plant and materials,
(b) Loss of or damage to Equipment
(c) Loss of or damages of property (expect the Works, Plant, Materials and
Equipment) in connection with the Contract; and
(d) Personal injury or death.
13.2 Policies and certificates for insurance shall be delivered by the Contractor to
the Engineer for the Engineer’s approval before the Start Date. All such
insurance shall provide for compensation to be payable in the types and
proportions of currencies required to rectify the loss or damage incurred.
13.3 If the Contractor does not provide any of the policies and certificates
required, the Employer may affect the insurance which the Contractor should
have provided and recover the premiums the Employer has paid from
payments otherwise due to the Contractor or, if no payment is due, the
payment of the premiums shall be a debt due.
13.4 Alterations to the terms of an insurance shall not be made without the
approval of the Engineer.
13.5 Both parties shall comply with any conditions of the insurance policies.
14. Site Investigation Report
14.1 The Contractor in preparing the Bid shall rely on any site Investigation
reports referred to in the Contract Data, supplemented by any information
available to the Bidder.
15. Queries about the Contract data
15.1 The engineer will clarify queries on the Contract Data
16. Contractor to Construct the Works
16.1 The Contractor shall construct and install the works in accordance with the
specification and Drawings.
17. The Works to be completed by the Intended Completion Date
17.1 The Contractor may commence execution of the Works on the Start Date and
shall carry out the Works in accordance with the programme submitted by
the Contractor, as updated with the approval of the Engineer, and complete
them by the Intended Completion date
18. Approval by the Engineer
18.1 The Contractor shall submit Specifications and Drawings showing the
proposed Temporary works to the Engineer, who is to approve them if they
comply with the Specifications and drawings.
18.2 The Contractor shall be responsible for design of temporary works.
18.3 The Engineer’s approval shall not alter the contractor responsibility for
design of the Temporary works.
18.4 The Contractor shall obtain approval of third parties to the design of the
Temporary works where required.
18.5 All Drawings prepared by the Contractors for the execution of the temporary
or permanent work are subject to prior approval by the Engineer before their
19.1 The Contractor shall be responsible for the safety of all activities on the Site.
20. Discoveries
20.1 Anything of historical or other interest or of significant value unexpectedly
discovered on the site is the property of the Employer. The contractor is to
notify the engineer of such discoveries and carry out the Engineer’s
instructions for dealing with them.
21. Possession of the Site
21.1 The Employer shall give possession of all parts of the site to the Contractor. If
possession of a part is not given by the date stated in the Contract Data the
Employer is deemed to have delayed the start of the relevant activities and
this will be a Compensation Event.
21.2 If within 25% of the time limit of the project, 80% of possession of the site is
not handed over to the Contractor, then contractor/ Employer may fore-close
the contract. Contractor/Employer has to foreclose the work within 30 days
after lapse of 25%-time limit and after 30 days foreclosure option will be
22. Access to the Site
22.1 The Contractor shall allow the Engineer and any person authorized by the
Engineer access to the Site, to any place where work in connection with the
Contract is being carried out or is intended to be carried out and to any place
where materials or plants are being manufactured/ fabricated/ assembled for
23. Instructions
23.1 The Contractor shall carry out all instructions of the Engineer pertaining to
works which comply with the applicable laws where the site is located.
23.2 The Contractor shall permit the Employer to inspect the Contractor’s
accounts and records relating to the performance of the Contractor and to
have them audited by auditors appointed by the Employer, if so required by
24.1 If the Contractor is of the view that a decision taken by the Engineer was
either outside the authority given to the Engineer by the Contract or that the
decision was wrongly taken, the decision shall be referred to
COMPETENT AUTHORITY OF SSNNL within 14 days of the notification of the
Engineer's decision. If the issue is not resolved, any party can refer the
matter for conciliation within 15 days from the decision given by
such competent authority.
(a) For the work up to Rs.100 Cr., if any of the parties is not satisfied with
the decision of the COMPETENT AUTHORITY, both the parties have to
refer to the Director (CAD/Civil/Canal) SSNNL concern for the
conciliation process.
(b) For the work more than Rs.100 Cr., if any of the parties is not satisfied
with the decision of the COMPETENT AUTHORITY, both the parties
have to refer to the M.D., SSNNL for the conciliation process.
If the dispute is not resolved through the conciliation process, he may refer
the dispute to Gujarat Public Works Contract Dispute Arbitration Tribunal. If
the Contractor fails to refer a claim / dispute to the Higher Authority within
14 days of the notification of the Engineer's decision, the Contractor shall not
be entitled to any additional payment/claim if he doesn’t follow the above
sequence in stipulated time and he should not stop the work.
25. Procedure for Disputers
25.1 The arbitration shall be conducted in accordance with the arbitration
procedure stated in the Special Conditions of Contract.
B. TIME CONTROL
27.1 Within the time stated in the Contract Data the Contractor shall submit to the
Engineer for approval a Programme showing the general methods,
arrangements orders, and timing for all the activities in the works along with
monthly cash flow forecast.
27.2 An update of the Programme shall be a programme showing the actual
progress achieved on each activity and the effect of the progress achieved on
the timing of the remaining work including any changes to the sequence of
the activities.
27.3 The Contractor shall submit to the Engineer, for approval an updated
programme at intervals no longer than the period stated in the Contract data.
If the Contractor does not submit an updated programme within this period,
the Engineer may withhold the amount stated in the Contract data from the
next payment after the date on which the overdue programme has been
27.4 The Engineer’s approval of the programme shall not alter the Contractor’s
obligations. The Contractor may revise the programme and submit it to the
Engineer again at any time. A revised programme is to show the effect of
Variations and Compensations events.
28. Extension of the Intended Completion Date
28.1 The Engineer shall extend the Intended Completion Date if a compensation
Event occurs or a Variation is issued which makes it impossible for
completion to be achieved by the Intended Completion Date without the
Contractor taking steps to accelerate the remaining work and which would
cause the Contractor to incur additional cost.
28.2 The Engineer shall decide whether and by how much to extend the Intended
Completion Date within 35 days of the Contractor asking the Engineer for a
decision upon the effect of a compensation event or Variation and submitting
full supporting information. If the Contractor has failed to give early warning
of a delay or has failed to cooperate in dealing with a delay, the delay by this
failure shall not be considered in assessing the new Intended Completion
28.3 The Engineer shall within 14 days of receiving full justification from the
contractor for extension of Intended Completion Date refer to the Employer
his decision. The employer shall in not more than 21 days communicate to the
engineer the acceptance or otherwise of the Engineer’s decision. If the
employer fails to give his acceptance, the Engineer shall not grant the
extension and the contractor may refer the matter under Clause
30. Delays Ordered by the Engineer
30.1 The Engineer may instruct the Contractor to delay the start or progress of any
activity within the works.
31. Management Meetings
31.1 Either the Engineer or the Contractor may require the other to attend a
management meeting. The business of a management meeting shall be to
review the plans for remaining work and to deal with matters raised in
accordance with the early warning procedure.
31.2 The Engineer shall record the business of management meetings and is to
provide copies of his record to those attending the meeting and to the
Employer. The responsibility of the parties for actions to be taken is to be
decided by the Engineer either at the management meeting or after the
management meeting and stated in writing to all who attended the meeting.
32. Early Warning
32.1 The Contractor is to warn the Engineer at the earliest opportunity of specific
likely future events or circumstances that may adversely affect the quality of
the work, increase the Contract price or delay the execution of works. The
Engineer may require the contractor to provide an estimate of the expected
effect of the future event or circumstance on the contract price and
completion date. The estimate is to be provided by the Contractor as soon as
reasonably possible.
32.2 The Contractor shall cooperate with the Engineer in making and considering
proposals for how the effect of such an event or circumstance can be avoided
or reduced by anyone involved in the work and in carrying out any resulting
instruction of the Engineer.
C. QUALITY CONTROL
33. Identifying Defects/ Defect liability period
33.1 : Defect liability period: The contractor shall be responsible to make good and
remedy at his own expense any defect which may develop or may be noticed
before the period mentioned hereunder from the certified date of completion.
The Engineer in charge shall give the contractor a notice in writing about the
defects and the contractor shall make good the same within 15 days of receipt
of the notice. In the case of failure on the part of the contractor, the Engineer-
in-charge may rectify or remove or re-execute the work at the risk & cost of
the contractor. The Engineer-in-charge shall be entitled to appropriate the
whole or any part of the amount of security deposit towards the expenses, if
any, Incurred by him in rectification, removal or re- execution. The Defects
Liability period shall be as under....
(a) For all works costing up to Rs. 50,000 (amount put to tender), the period shall
be 3 Months from the certified date of completion.
(b) For all works costing more than Rs. 50,000 and up to Rs. 1 crore (amount put
tender), the period shall be 12 (Twelve) months from the certified date of
completion or one monsoon, whichever is later.
(c) For major projects costing more than Rs. 1 crore, the period shall be
Months from the certified date of completion which should include three
(d) For original building works the defect liability period will be 4 years or elapse
of 4 monsoon period following date of possession of building taken over by
user agency following the certified date of completion, whichever is later.
For the purpose of deciding the monsoon period, the 30th September shall be
treate as the last date.
Modified vide R & B D Circular No. PAC-11-102008-2076-N dated 31/8/2009,
PRCH/102013(2976) 2759-N, Dated 27/05/2013 and Circular
No.TNC/10/2016/Clause 17A (Correction/(1)C Dated 12/05/2016]
33.2 Free maintenance guarantee period for works of Road/Bridge
(a) For resurfacing work of road free maintenance guarantee period one
year from the date of completion.
(b) In case of widening of the road/strengthening of the road/bridge, the
contractor shall have to give four years free maintenance guarantee
from the certified date of completion. During this period the contractor
shall visit the site every three months along with the concerned
Section Officer / Deputy Executive Engineer and will examine the work
already carried out in this contract like road work, jungle cutting, side
shoulders, side gutter, road furniture, patta etc. and will prepare Km.
wise inspection report duly signed by all concerned and any defect
observed shall be done within 15 days by the contractor at his risk and
cost as per the direction of Engineer in charge. The contractor needs to
do videography of these visits and require to submit at the time of
release of FMG. If the B.T. surface during the maintenance period of
years is worn out then agency shall have to provide renewal coating as
per tender item as directed by the Engineer-in- charge. The amount
equivalent to 5% of each running bill shall be withheld and will be
released after the free maintenance guarantee period (i.e. 4 years) is
However, this amount shall be released against fixed deposit or bank
guarantee pledged in the name of Executive Engineer after completion
certificate of work is issued.
33.2.1 The flakiness and elongation index (combined) for coarse aggregates
under no circumstances shall exceed the allowable limit set forth in the
relevant clause for the material in question.
33.2.2 2% of the amount eligible for the payment of bituminous items shall be
withheld till the miscellaneous items like earthwork in embankment /
cutting for side shoulders, side gutters, kilometer / indicator / guard
stones, sign boards etc. are completed in all respect by the contractor.
After completion of the miscellaneous items, the above said 2%
withheld amount shall be released.
33.2.3 Videography for the surface under Maintenance Guarantee is to be
done as per Govt. letter No.: SSR/10/2015-16/26/C, Dtd. 26/11/15 for
the work costing more than Rs. 5.00Crore.
33.2.4 Setting up of adequate laboratory & deployment of quality engineers.
The contractor shall have to set up the laboratory with adequate
equipment. Till the setting up of adequate laboratory is completed &
reported of this to the engineer (subject to due verification by
engineer’s representative) by contractor in writing, Rs.2,00,000/- shall
be withheld. The qualified quality Engineer shall be deployed
exclusively for this contract by the contractors. If quality Engineer is not
deployed by contractor within one month after the date of work order,
the amount equivalent to Rs.20,000 per month shall be recovered till
the actual deployment of quality engineer. The amount so recovered
towards the deployment of quality engineers shall not be refunded.
33.2.5 Asphalt work will have to be cross checked as per G.R. No.:
RGN/60/2006/35/C, dtd.31/05/07 before final bill is paid.
33.2.6 Maintenance during Construction Period
During the Construction Period, the Contractor shall maintain, at his
own risk and cost, the existing lane(s) of the road so that the traffic
worthiness and safety thereof are at no time materially inferior as
compared to their condition 10 (ten) days prior to the date of the
Agreement, and shall undertake the necessary repair and maintenance
works for this purpose; provided that the Contractor may, at his cost,
interrupt and divert the flow of traffic if such interruption and diversion
is necessary for the efficient progress of works and conforms to Good
Industry Practice; provided further that such interruption and
diversion shall be undertaken by the Contractor only with the prior
written approval of the Executive Engineer which approval shall not be
unreasonably withheld. For the avoidance of doubt, it is agreed that the
Contractor shall at all times be responsible for ensuring safe operation
33.3 The Engineer shall check the Contractor’s work and notify the
Contractor of any defects that are found. Such checking shall not affect
the Contractor’s responsibilities the Engineer may instruct the
Contractor to search for a Defect and to uncover and test any work that
the Engineer considers may have a Defect.
33.4 Free maintenance guarantee period for works of construction of
Canals (including UGPL). Canal Structures, Canal Roads. Hydro
Electrical & Mechanical works, Solar, Building works and
Maintenance & Operations.
(a) For the work of Canals(including UGPL), Canal Structures, Canal
Roads, Hydro Electrical & Mechanical works, Solar, Building
works and Maintenance & Operations free maintenance
guarantee period one year from the date of completion
(b) During this period the contractor shall visit the site every three
months along with the concerned Section Officer/ Deputy
Executive Engineer and will examine the work already carried
out in this contract and attend all defects such as filling rain cuts
in banks. Jungle cutting, side gutter and all other defects in all
structures and its components etc. and will prepare reach wise
inspection report duly signed by all concerned and any defect
observed shall be done within 15 days by the contractor at his
risk and cost as per the direction of Engineer in charge. The
contractor needs to do videography of these visits and require to
submit at the time of release of Performance Bond/Performance
Security related to Free Maintenance Guarantee. The amount
equivalent to 5% of each running bill shall be withheld and will
be released after the free maintenance guarantee period (i.e.
years) is over.
However, this amount shall be released against fixed deposit or
bank guarantee pledged in the name of Executive Engineer after
completion certificate of work is issued,
(1) The materials used for the works during construction shalt be as
per Indian standards/Technical Specifications of the respective
item and all the test as per respective Indian Standards/
Technical Specifications of the respective item shall be conducted
and ensured that the test results shall be meet the criteria
specified in the relevant clause/specifications for the maternal in
(2) 2% of the amount shall be withheld till the miscellaneous items
like WBM road, testing of canals, side gutters, km stones, canal
data board, marble data plates, gauge plates, gate work etc. and
in case of UGPL, works, trial run, other ancillary work viz,
strainer, ladder, pump, well-cover, performance test trial run of
Hydro Mechanical and Electrical works etc. are completed in all
respect by the contractor. After completion of the miscellaneous
items, the above said 2% withheld amount shall be released.
(3) Videography for the works under Maintenance Guarantee is to
be done as per Govt. letter No.: SSR/10/2015-16/26/C, Dtd
26/11/15 for the work costing more than estimated cost of Rs.
(4) Setting up of adequate laboratory & deployment of quality
engineers. The contractor shall have to set up the laboratory with
adequate equipment. Till the setting up of adequate laboratory is
completed & reported of this to the engineer (subject to due
verification by engineer's representative) by contractor in
writing Rs 2,00,000/- shall be withheld. The qualified quality
Engineer shall be deployed exclusively for this contract by the
contractors. If quality Engineer is not deployed by contractor
within one month after the date of work order, the amount
equivalent to Rs 20,000 per month shall be recovered till the
actual deployment of quality engineer. The amount so recovered
towards the deployment of quality engineers shall not be
(5) For finalizing the work, the work carried-out shall be randomly
checked by core test for the canal lining works and density tests
for embankment works will have performed randomly as per
SSNNL G.R. No. મ.ુ ઇ/ગનુ િ/િર્મદા ગ.ુ નિ/પીબી-૨/૬૮/૨૦૧૧ તારીખ: ૨/૬/૨૦૧૧
before final bill is paid
(6)Maintenance during Construction Period
During the Construction Period, the Contractor shall maintain; at
his own risk and cost; works for safety are at no time materially
inferior as compared to their condition 10 (ten) days prior to the
date of the Agreement, and shall undertake the necessary repair
and maintenance works for this purpose, provided that the
Contractor may at his cost is necessary for the efficient progress
of works and conforms to Good Industry Practice; provided
further that such interruption and diversion shall be undertaken
by the Contractor only with the prior written approval of the
Executive Engineer which approval shall not be unreasonably
withheld. For the avoidance of doubt, it is agreed that the
Contractor shall at all times be responsible for ensuring safe
operation of the work.
34.1 If the engineer instructs the Contractor to carry out a test not specified in the
Specification to check whether any work has a Defect and the test shows that
it does, the Contractor shall pay for the test and any samples. If there is no
defect the test shall be a Compensation Event.
34.2 For Confirmatory tests of the testing done by the agencies 1% of the amount of
work done should be deducted from R.A. bill of the contractor for testing
the quality of material workmanship, irrespective of actual charges.
34.3 Agency has to establish testing laboratory on site for the various test to be
carried out in the work for this purpose agency shall construct a pukka
laboratory building with all facility on site at location specified by the
engineer in charge.
35. Correction of defects
35.1 The engineer shall give notice to the Contractor of any defects before the end
of the defects Liability Period, which begins at Completion and is defined in
the contract data. The Defects Liability Period shall be extended for as long as
Defects remain to be corrected.
35.2 Every time notice of a Defect is given, the Contractor shall correct the notified
defect within the length of time specified by the Engineer’s notice.
36. Uncorrected Defects
36.1 If the Contractor has not corrected a defect within the time specified in the
Engineer’s notice, the Engineer will assess the cost of having the Defect
corrected, and the Contractor will pay this amount.
D. COST CONTROL
37. Bill of Quantities
37.1 The bill of Quantities shall contain items for the constructions, installation,
testing and commissioning work to be done by the Contractor.
37.2 The bill of Quantities is used to calculate the Contract price. The Contractor is
paid for the quantity of the work done at the rate in the Bill of Quantities for
38. Change in the Quantities
38.1 The Engineer shall have power to make any alterations in or addition to the
original specifications , drawings, designs and instructions that may appear to
him to be necessary or advisable during the progress of the work and the
contractor shall be bound to carry out the work in accordance with any
instruction in this connection which may be given to him in writing signed by
the Engineer and such alteration shall not invalidate the contract and any
additional work which the contractor may be directed to do in the manner
above specified as part of the work shall be carried out by the contractor on
the same conditions in all respects on which he agreed to do the main work
and at the same rate as are specified in the tender for the main work.
Except that when the quantity of any item exceeds the quantity as in the
tender by more than 130%, the contractor will be paid for the quantity in
excess of 130%, at the rate entered in the SOR of the year during which the
excess in quantity is first executed.
39.1 All Variations shall be included in updated programmes produced by the
40. Payments for Variations
40.1 If the additional or altered work includes any class of work for which no rate
is specified in this contract, then such class of work shall be carried out as
(i) At the rate derived from the item within the contract which is comparable to
the one involving additional or altered class of work; where there are more
than one comparable items, the item of the contract which is nearest in
comparison with regard to class or classes of the work involved shall be
selected and the decision of the Superintending Engineer as to the nearest
comparable item shall be final and binding on the contractor.
(ii) If the rate cannot be derived in accordance with (i) above, such class of works
shall be carried out at the rate entered in the Schedule of Rates of the division
for the year in which the tender was received, increased or decreased by the
percentage by which the tender amount is more or less as compared to the
amount arrived at the rates in the “Schedule of Rates” of the Division in the
year in which the tender was received. If the Schedule of rates of the Division
does not contain all the items, the percentage increase or decrease of the
tender shall be calculated considering such items which were included in the
“Scheduled Rates” of the division for the year and for materials consumed on
such item the rate to be charged would be the basic rate taken into account
for fixing the rate in S.O.R. referred to above.
(iii) If it is not possible to arrive at the rate from (i) and (ii) above, such class of
work shall be carried out at the rate decided by the competent authorities on
the basis of detailed rate analysis after hearing the contractor before a
Committee of two Superintending Engineers stationed at the same place or
the nearest place.
40.2 If the additional or altered work, for which no rate is entered in the “Schedule of
Rates” of the Division is ordered to be carried out before the rate is agreed upon,
then the contractor shall within seven days of the date of receipt by him of the
order to carry out the work, inform the Engineer-in-charge of the rate, which it is
his intention to charge for such class of work and if the Engineer in charge does
not agree to this rates, he shall by notice in writing be at liberty to cancel his order
to carry out such class of work and arrange to carry it out in such manner as he may
consider it advisable, provided always that if the contractor shall commence work
or incur any expenditure in regard thereof before the rates shall have been
determined as lastly herein before mentioned, then in such cases he shall only be
entitled to be paid in respect of the work carried out or expenditure incurred by him
prior to the date of the determination of the rate as aforesaid according to such rate
or rates as shall be fixed by the Engineer-in-charge after obtaining approval of
the Competent Authority if needed as per delegation of Powers of SSNNL. In
the event of the dispute, the decision of the Competent Authority of SSNNL
shall be final.
Where, however, the work is to be executed according to the designs,
drawings and specifications recommended by the contractor and accepted by
the competent authority, the alternation above referred to shall be within the
scope of such designs, drawings and specifications appended to the tenders.
The time limit for the completion of the work shall be extended in the
proportion that the increase in the cost occasioned by alterations bears to the
cost of the original work and the certificate of the Engineer-in-charge as to
such proportion shall be final and conclusive.
41. Cash Flow Forecasts
41.1 When the programme is updated, the contractor is to provide the engineer
with an updated cash flow forecast.
42. Payment certificates.
42.1 The Contractor shall submit to the Engineer monthly statements of the
estimated value of the work completed less the cumulative amount certified
42.2 The Engineer shall check the Contractor’s monthly statement within 14 days
and certify the amount to be paid to the Contractor after taking in to account
any credit or debit for the month in question in respect of materials for the
works in the relevant amounts and under conditions set forth in sub-clause
32.3 of the Contract Data (secured Advance).
42.3 The value of work executed shall be determined by the Engineer.
42.4 The value of work executed shall comprise the value of the quantities of the
items in the Bill of Quantities completed.
42.5 The value of work executed shall include the valuation of variations and
compensation events.
42.6 The Engineer may exclude any item certified in a previous certificate or
reduce the proportion of any item previously certified in any certificate in the
light of later information
43.1 Payments shall be adjusted for deductions for advance payments, retention,
other recoveries in terms of the contract and taxes at source, as applicable
under the law. The Employer shall pay the Contractor the amounts certified
by the Engineer within 28 days of the date of each certificate.
43.2 Payment of GST (prevailing rates) on the amount payable under the contract
to the Contractor will be made by the Employer. Hence, it is the responsibility
of the contractor to pay the GST to the concerned Authority.
43.3 Items of the works for which no rate or price has been entered in will not be
paid by the Employer and shall be deemed covered by other rates and prices
in the Contract.
44. Compensation events
44.1 The following are compensation Events unless they are caused by the
(a) The Employer does not give access to a part of the Site by the site
Possession date stated in Contract data to the Contractor
44.2 In case of compensation event occurs and it prevents the work being
completed beyond the Intended Completion Date then Authority will approve
EOT with eligible contractual price escalation.
45.1 The rates quoted by the Contractor must be inclusive of all taxes prevailing on
due date of bid submission except GST. However, any subsequent changes in
the tax structure by Government after due date of bid submission will be
compensated (+/-) on availability or submission of actual documentation.
Contractor will have to intimate Engineer regarding changes occurred in the
tax structure after bid submission. If the contractor fails to provide such
information and if any financial obligation may arise due to change in tax
structure, same will be recovered from the contractor.
45.2 GST will be paid separately on the bills. Hence, it is the responsibility of the
contractor to pay the GST to the concerned Authority.
46. Currencies.
46.1 All payment shall be made in Indian Rupees.
47. Price Adjustment
47.1 Contract price shall be adjusted for increase or decrease in rates and price of
labour, materials, fuels and lubricants in accordance with the following
principles and procedures and as per formula given in the contract data:
(a) The price adjustment shall apply for the work done from the start date
given in the contract data up to end of the initial intended completion date
or extensions granted by the Engineer and shall not apply to the work
carried out beyond the stipulated time for reasons attributable to the
(b) The price adjustment shall be determined during each month from the
formula given in the contract data.
(c) Following expressions and meanings during to the work done during each
R = Total value of work done during the month. It would include the
amount of secured advance granted, if any, during the month less the
amount of secured advance recovered, if any during the month. It will
exclude value for works executed under variations for which price
adjustment will be worked separately based on the terms mutually
47.2 To the extent that full compensation for any rise or fall in costs to the
contractor is not covered by the provisions of this or other clause in the
contract, the unit rates and prices included in the contract shall be deemed to
include amounts to cover the contingency of such other rise or fall in costs.
48.1 The Employer shall retain from each payment due to Contractor the
proportion stated in the Contract Data until Completion of the whole of the
48.2 On Completion of the whole of the Works half the total amount retained is
48.2 On Completion of the whole of the Works half the total amount retained is
repaid to the Contractor and half when the Defects Liability Period has passed
and the Engineer has certified that all Defects notified by the Engineer to the
Contractor before the end of this period have been corrected.
48.3 On completion of the whole works, the contractor may substitute retention
money with an “on demand” Bank guarantee.
In case, Contractor requests for refund of the Retention Money
deducted by the Employer under the provision of this clause, Employer shall
consider the said request of the Contractor provided that the refund
hereunder shall be made in tranches of not less than 1% (One Percent) of the
Contract Price and Contractor furnishes an irrevocable and unconditional
Bank guarantee for an equal amount substantially in the format of Bank
Guarantee for Performance Guarantee enclosed with SBD and valid up to
day beyond the scheduled / extended Defects Liability Period. On completion
of the whole works, the contractor has however an option to submit a fresh
irrevocable and unconditional Bank Guarantee for an amount equal to 5% of
the total value of work executed substantially in the format of Bank Guarantee
for Performance Guarantee enclosed with SBD and valid up to 60 days beyond
the Defect Liability Period and yet refund the Retention Money Bank
Guarantee submitted for refund of Retention Money.
49. Liquidated Damages
49.1 The Contractor shall pay liquidated damages to the Employer at the rate per
day stated in the Contract Data for each day that the Completion Date is later
than the Intended Completion Date (for the whole works or the milestone as
stated in the contract data). The total amount of liquidated damages shall not
stated in the contract data). The total amount of liquidated damages shall not
exceed the amount defined in the Contract Data. The Employer may deduct
liquidated damages from payment due to the Contractor. Payment of
liquidated damages does not affect the Contractor’s liabilities.
49.2 If the Intended Completion Date is extended after liquidated damages have
been paid, the Engineer shall correct any overpayment of liquidated damages
by the Contractor by adjusting the next payment certificate. The Contractor
shall not be entitled for any interest on the over payment calculated from the
date of payment to the date of repayment.
49.3 If the contractor fails to comply with the time for completion as stipulated in
the tender, then the contractor shall pay to the employer the relevant sum
stated in the Contract Data as Liquidated damages for such default and not as
penalty for everyday or part of day which shall elapse between relevant time
for completion and the date stated in the taking over certificate of the whole
of the works on the relevant section, subject to the limit stated in the contract
The employer may, without prejudice to any other method of recovery
deduct the amount of such damages from any monies due or to become due to
the contractor. The payment or deduction of such damages shall not relieve
the contractor from his obligation to complete the works on from any other of
his obligations and liabilities under the contract.
49.4 If, before the Time for Completion of the whole of the Works or, if applicable
any Section, a Taking Over Certificate has been issued for any part of the
Works or of a Section, the liquidated damages for delay in completion of the
remainder of the Works or of that Section shall, for any period of delay after
the date stated in such Taking-Over-Certificate, and in the absence of
alternative provisions in the Contract, be reduced in the proportion which the
value of the part so certified bears to the value of the whole of the Works or
Section, as applicable. The provisions of this Sub-clause shall only apply to the
rate of liquidated damages and shall not affect the limit thereof.
50.1 If the contractor achieves completion of the whole of the works prior to the
intended Completion Date prescribed in Contract Data the Employer shall
pay to the contractor a sum stated in Contract Data as bonus for every
completed month but subjected to maximum amount as stated in
Contract Data; which shall elapse between the date of completion of all
items of works as stipulated in the contract, including variations ordered by
the Engineer and the time prescribed in Clause
50.2 Bonus shall be paid only to works amounting to above INR 5 crore with time
limit of the works is equal or more than 6 months. The bonus would be paid
% of Time Saved % of Initial Contract Price
entitled for Bonus
Less than 10% 0%
51. Advance Payment.
51.1 The Employer shall make advance payment (not to be paid less than two
installments except in special circumstances for which the reason to be
Recorded in writing) to the Contractor of the amounts stated in the Contract
Date by the date stated in the Contract Date, against provision by the
Contactor of an Unconditional Bank Guarantee in a form and by a bank
acceptable to the Employer in amounts and currencies equal to be at least
110% of the advance payment. The guarantee shall remain effective until the
advance payment has been repaid, but the amount of the guarantee shall be
progressively reduced by the amounts repaid by the Contractor. The
Mobilization advance would be deemed as interest bearing advance at an
interest rate of 10 % to be compounded, quarterly.
51.2 The Contractor is to use the advance payment only to pay for Equipment,
plant and Mobilization expenses required specifically for execution of the
Works. The Contractor shall demonstrate that advance payment has been
used in this way by supplying copies of invoices or other documents to the
51.3 The advance payment shall be repaid by deduction proportionate amount
from payments otherwise due to the Contractor, following the schedule of
completed percentages of the Works on a payment basis. No account shall be
taken of the advance payment or its repayment in assessing valuations of
work done, variations, price adjustments, Compensation Events, or
Liquidated damages.
52.1 The performance Security (including additional security for unbalanced bids)
shall be provided to the Employer no later than the date specified in the
Letter of Acceptance and shall be issued in an amount and form and by a bank
or surety acceptable to the Employer, and denominated in Indian Rupees. The
performance Security shall be valid until a date 60 days from the date of
expiry of Defects Liability Period and the additional security for unbalanced
bids shall be valid until a date 28 days from the date of issue of the certificate
54. Cost of Repairs.
54.1 Loss or damage to the Works or Materials to be incorporated in the Works
between the Start date and the end of Defects Correction periods shall be
remedied by the Contractor at the Contractor’s cost if the loss or damages
arises from the Contractor’s acts or omissions.
E. FINISHING THE CONTRACT
55.1 The Contractor shall request the Engineer to issue a Certificate of Completion
of the works and the Engineer will do so upon deciding that the work is
56. Taking Over
56.1 The Employer shall take over the Site and the Works within seven days of the
Engineer issuing a certificate of Completion.
57. Final Account
57.1 The Contractor shall supply to the Engineer a detailed final account of the
total amount that the Contractor considers payable as full and final settlement
total amount that the Contractor considers payable as full and final settlement
of all claims under the Contract for items before the end of the Defects
Liability Period. The Engineer shall issue a Defect Liability Certificate and
certify any final payment that is due to the Contractor within 56 days of
receiving the Contractor's account if it is correct and complete. If it is not, the
Engineer shall issue within 56 days a schedule that states the scope of the
corrections or additions that are necessary. If the Final Account is still
unsatisfactory after it has been resubmitted, the Engineer shall decide on the
amount payable to the Contractor and issue a payment certificate, within
days of receiving the Contractor’s revised account.
57.2 If reversal in characteristic of tender (L1 becoming L2) on account of excesses
and savings in final account is observed, the Engineer/Employer shall be at
liberty to restrict the final payment of BOQ items to the lowest amount
evaluated of the bids considering the final quantities and the rates quoted
including the rebates if any. Payment of variation items shall however be
made at the rates approved by the Employer, within 90 days from the
physical completion of work.
58. Operating and Maintenance Manuals
58.1 If “as built” drawings and/or operating and maintenance manuals are
required, the Contractor shall supply them by the dates stated in the Contract
58.2 If the Contractor does not supply the Drawings and/or manuals by the dates
stated in the Contract data, or they do not receive the Engineer’s approval, the
Engineer shall withhold the amount stated in the Contract Data from
payments due to the Contractor.
59. Termination
59.1 The Employer or the Contractor may terminate the Contract if the other party
causes a fundamental breach of the Contract.
59.2 Fundamental breaches of Contract include, but shall not be limited to the
1. The contractor stops work for 28 days when no stoppage of work is
shown on the current programme and the stoppage has not been
authorized by the Engineer
2. The Engineer instructs the Contractor to delay the progress of the Works
and the instructions is not withdrawn within 28 days;
3. The Employer or the Contractor is made bankrupt or goes into liquidation
other than for a reconstructions or amalgamation
4. A payment certified by the Engineer is not paid by the Employer to the
Contractor within 56 days of the date of the Engineer’s certificate
5. The Engineer gives Notice that failure to correct a particular Defect is a
fundamental breach of Contract and the Contractor fails to correct it
within a reasonable period of time determined by the Engineer;
6. The Contractor does not maintain a security which is required;
7. The Contractor has delayed the completion of works by the number of
days for which the maximum amount of liquidated damages can be paid as
defined in the Contract data; and
8. If the Contractor, in the judgment of the Employer has engaged in corrupt
or fraudulent practices in competing for or in executing the Contract.
For the purpose of this paragraph: “corrupt practice” means the
offering, giving, receiving or soliciting of anything of value to influence the
action of a public official in the procurement process or in contract execution.
“Fraudulent practice” means a misrepresentation of facts in order to influence
a procurement process or the execution of a contract to the detriment of the
borrower, and includes collusive practice among Bidders (prior to or after bid
submission) designed to establish bid prices at artificial non-competitive
levels and to deprive the Borrower of the benefits of free and open
59.3 When either party to the Contract gives notice of a breach of contract to the
Engineer for a cause other than those listed under Sub Clause 59.2 above, the
Engineer shall decide whether the breach is fundamental or not.
59.4 Notwithstanding the above, the employer may terminate the Contract for
60. Payment upon Termination
60.1 If the Contract is terminated because of a fundamental breach of Contract by
the Contractor, the Engineer shall issue a Certificate for the value of the work
done less advance payments received up to the date of the issue of the
certificate, less other recoveries due in terms of the contract, less taxes due to
deducted at source as per applicable law and less the percentage to apply to
the work not completed as indicated in the Contract data. Additional
Liquidated Damages shall not apply. If the total amount due to the Employer
Liquidated Damages shall not apply. If the total amount due to the Employer
exceeds any payment due to the Contractor the difference shall be a debt
payable to the Employer.
60.2 If the Contract is terminated at the Employer’s convenience or because of a
fundamental breach of Contract by the Employer, the Engineer shall issue a
certificate for the value of the work done, the cost of balance material brought
by the contractor and available at site, the reasonable cost of removal of
equipment, repatriation of the Contractor’s personnel employed solely on the
works, and the Contractor’s cost of protecting and securing the Works and
less advance payment received up to the date of the certificate, less other
recoveries due in terms of the contract and less taxes due to deducted at
source as per applicable law.
61.1 All materials on the Site, Plant Equipments, Temporary Works and Works are
deemed to be property of the Employer, if the Contract is terminated because
of a Contractor’s default.
62. Release from Performance
62.1 If the Contract is frustrated by the outbreak of war of by any other event
entirely outside the control of either the Employer or the Contractor the
Engineer shall certify that the Contract has been frustrated. The Contractor
shall make the Site safe and stop work as quickly as possible after receiving
this certificate and shall be paid for all work carried out before receiving it
and for any work carried out afterwards to which commitment was made.
F. SPECIAL CONDITIONS OF CONTRACT
The Contractor shall, unless otherwise provided in the Contract, make
his own arrangements for the engagement of all staff and labour, local or
other, and for their payment of housing, feeding and transport.
The Contractor shall, if required by the Engineer, deliver to the
Engineer a return in detail, in such form and at such intervals as the Engineer
may prescribe, showing the staff and the numbers of the several classes of
labour from time to time employed by the Contractor on the site and such
other information as the Engineer may require.
64. COMPLIANCE WITH LABOUR REGULATIONS
During continuance of the contact, the Contractor and his sub-contractor shall
abide at all times by all existing labour enactments and rules made thereunder,
regulations, notification and bye laws of the State or central Government or
local authority and any other labour law (including rules), regulations, bye
laws that may be passed or notifications that may be issued under any labour
law in future either by the State or the Central Government or the local
authority. Salient features of some of the major labour laws that are
applicable to the construction industry are given below. The Contractor shall
keep the Employer indemnified in case any action is taken against the
Employer by the competent authority on account of contravention of any of
the provisions of any Act or rules made thereunder, regulations or
notifications including amendments. If the Employer is caused to pay or
reimburse, such amounts as may be necessary to cause or observe, or for
observance of the provisions stipulated in the notifications/bye
laws/Acts/Rules/regulations including amendments, if any, on the part of the
Contractor, the Engineer/employer shall have the right to deduct any money
due to the Contractor including his amount of performance security. The
Employer/Engineer shall also have the right to recover from the Contractor any
sum required or estimated to be required for making good the loss or damage
suffered by the Employer.
The employees of the Contractor and the Sub-Contractor in no case shall be
treated as the employees of the Employer at any point to time.
SALIENT FEATURES OF SOME MAJOR LABOUR AND OTHER LAWS APPLICABLE TO
ESTABLISHMENTS ENGAGED IN BUILDING AND OTHER CONSTRUCTIONS WORK
A) Workmen Compensation Act 1923 :- The Act provides for compensation in
case of injury by accident arising out of and during the course of employment.
B) Payment of Gratuity Act. 1972 :- Gratuity is payable to an employee under the
Act on satisfaction of certain conditions on separation if an employee has
completed 5 years service or more on death, the rate of 15 days wages for every
completed year of service. The Act is applicable to all establishments employing
10 or more employees.
C) Employees P.F. and Miscellaneous Provision Act 1952:- The Act Provides for
monthly contributions by the employer plus workers @ 10% or 8.33% The
benefits payable under the Act are :
1. Pension or family pension on retirement or death, as the case may be.
2. Deposit linked insurance on the death in harness of the worker.
3. Payment of P.F. accumulation on retirement/death etc.
D) Maternity Benefit Act 1951 :- The Act provides for leave and some other
benefits to women employees in case of confinement or miscarriage etc.
E) Contract Labour (Regulation & Abolition) Act 1970 : The Act provides for
certain welfare measures to be provided by the Contractor to contract labour and
in case the Contractor fails to provide, the same are required to be provided, by
the Principal Employer by Law. The principal Employer is required to take
Certificate of Registration and the Contractor is required to take license from the
designated Officer. The Act is applicable to the establishments or Contractor of
Principal Employer, if they employ 20 or more contract labour.
F) Minimum Wages Act 1948 :- The Employer is supposed to pay not less than the
Minimum Wages fixed by appropriate Government as per provisions of the Act, if
the employment is a scheduled employment. Construction of Building, Roads,
Runways are scheduled employment.
G) Payments of wages Act 1936:- It lays down as to by what date the wages are to
be paid, when it will be paid and what deductions can be made from the wages
of the workers.
H) Equal remunerations Act 1979 :- The Act provides for payment of equal
wages for work of equal nature to Male and Female workers and for not making
discrimination against female employees in the matter of transfer, training and
promotions etc.
I) Payments of Bonus Act 1965 :- The Act is applicable to all establishments
employing 20 or more employees. The Act provides for payments of annual
bonus subject to a minimum of 8.33% of wages and maximum of 20 % of wages
to employees drawing Rs. 3500/- per month or less. The bonus to be paid to
employees getting Rs, 2500/- per month or above Rs. 3500/- per month shall be
worked out by taking wages as Rs. 2500/- per month only. The Act does not
apply to certain establishments. The newly set-up establishments are exempted
for five years in certain circumstances. Some of the State Governments have
reduced the employment size from 20 to 10 for the purpose of applicability of
J) Industrial Disputes Act 1947 :- The Act lays down the machinery and
procedure for resolutions of Industrial disputes, in what situations a strike or
lock-out becomes illegal and what are the requirements for laying off or
retrenching the employees or closing down the establishment.
K) Industrial employment (standing Orders) Act 1946 :- It is applicable to all
establishments employing 100 or more workmen (employment size reduced by
some of the State and Central Government to 50). The Act provides for laying
down rules governing the conditions of employment by the Employer on
matters provided in the Act and get the same certified by the designated
L) Trade Unions Act 1926:- The Act lays the procedure for registration of trade
unions of workmen and employers. The Trade Unions registered under the Act
have given certain immunities from civil and criminal liabilities.
M) Child Labour (Prohibition & Regulation Act 1986 :- The Act prohibits
employment of children below 14 years of age in certain occupations and
process and provides for regulation of employment of children in all other
occupations and processes. Employment of Child labour is prohibited in Building
and Construction Industry.
N) Inter – St at e M igra nt wo rkmen’s (Regul a t ion of Emp lo yment &
Conditions of service) Act 1979:- The Act is applicable to an establishment
5 or more inter-state migrant workmen through an intermediary (who has
recruited workmen in one state for employment in the establishment situated in
another state).The inter-state migrant workmen, is an establishment to which
this Act becomes applicable, are required to be provided certain facilities such as
housing, medical aid, traveling expenses from home upto the establishment and
O) The Building and Other Construction workers (Regulation of employment
and Conditions of Service) Act 1996 and the Cess Act of 1996:- All the
establishments who carry on any building or other constructions work and
employ 10 or more workers are covered under this Act.
All such establishments are required to pay cess at the rate not exceeding 2% of
the cost of construction as may be modified by the government. The Employer of
the establishment is required to provide safety measures at the Building or
construction work and other welfare measures, such as canteens, First Aid
facilities, Ambulance, Housing accommodations for workers near the workplace
etc. The Employer to whom the Act applies has to obtain a registration certificate
from the Registering Officers appointed by the Government.
P) Factories Act 1948 :- The Act lays down the procedure for approval of plans
before setting up a factory, health and safety provisions, welfare provisions,
working hours, annual earned leave and rendering information regarding
accidents or dangerous occurrences to designated authorities. It is applicable to
premises employing 10 persons or more with aid of power or 20 or more
persons without the aid of power engaged in the manufacturing process.
Q) Royalty charges-The contractor shall pay the royalty to the competent
authority as per rule. The royalty charges paid shall be borne by the
contractor and shall not be reimbursed by the Employer.
R) Following Pollution control Acts and amendments made thereof
from time to time shall be applicable.
1. Water (Preservation and control of Pollution) Act,
2. Air (Prevention and Control of Pollution Act
3. Environmental (Protection) Act
The contractor must commit to adopting Environmental
management plan for best energy use, waste management, the reduction
of pollution as in EMS (Environmental Management system)ISO-14001-
65. ARBITRATION (GCC Clause 24)
The procedure for arbitration will be as follows: -
65.1 If the Contractor is of the view that a decision taken by the Engineer was either
outside the authority given to the Engineer by the Contract or that the decision
was wrongly taken, the decision shall be referred to COMPETENT
AUTHORITY OF SSNNL within 14 days of the notification of the Engineer's
decision. If the issue is not resolved, any party can refer the matter for
conciliation within 15 days from the decision given by such Competent
(a) For the work up to Rs.100 Cr., if any of the parties is not satisfied with
the decision of the COMPETENT AUTHORITY, both the parties have to
refer to the Director (CAD/CIVIL/CANAL), SSNNL concerned for the
conciliation process.
(b) For the work more than Rs.100 Cr., if any of the parties is not satisfied
with the decision of the COMPETENT AUTHORITY, both parties have to
refer to the MD,SSNNL, Government of Gujarat for the conciliation
If the dispute is not resolved through the conciliation process,
contractor may refer the dispute to Gujarat Public Works Contract
Dispute Arbitration Tribunal. If the Contractor fails to refer a claim /
dispute to the Higher Authority within 14 days of the notification of the
Engineer's decision, the Contractor shall not be entitled to any
additional payment/claim if he doesn’t follow the above sequence in
stipulated time. However, during such period, he would not stop the
work in any case.
Clause Reference With
respect To section
Item marked “N/A” do not apply to this Contract.
1. The Employers is [CL.1.1]
Name: Executive Engineer
Address: Block No.12, 9th Floor, New Sachivalaya, Gandhinagar
Name of authorized Representative (will be intimated later)
2. The Engineer is Executive Engineer, N.P.Main Canal Dn.No.2,
Name of Authorized Representative: Shri N.V.Bhavsar
3. The Defects Liability Period is 36 months from the date of [CL.1.1&33]
4. The Start Date shall be 1st days for the date of issue of the Notice [CL.1.1]
to proceed with the work.
5. The Intended Completion Date for the whole of the works is [CL.1.1,17&2]
04 Months after start of work with the following milestones:
Milestone dates: [CL.2.2& 49.1]
Physical works to be completed Period from the start date
Milestone 1 i.e. 25 %30 days.
Milestone 2 i.e. 50 % 60 days.
Milestone 3 i.e. 75 % 90 days.
Milestone 4 i.e. 100 % 120 days.
6. The Site is located at Narmada Main Canal, Vill.Sughad, [CL.1.1]
Ta. & Dist. Gandhinagar.
7. The name and identification number of the Contract is: As per tender [CL.1.1]
8. The works consist of Construction of the additional head regulator [CL.1.1]
(Inverted Syphon Type) at ch. 231.588 Km of Narmada Main Canal
including 5 years O&M Period with items as per B.O.Q. The works
shall, inter alia, include the following, as Specified or as directed:
(A) Road Works :
Site clearance; setting out and layout widening of existing carriageway and
strengthening including camber corrections; construction of new road/ Parallel
service road; bituminous pavements remodeling/construction of Junctions,
intersections, bus bays, lay-bays; supplying and placing of drainage Channels,
flumes, guard posts and guard other related items; construction/extension of cross
drainage works, bridge, approaches and other related stones; protective works for
roads/bridge; all aspects of quality assurance of various components of the
works; rectification of The defects in the completed works during the Defects
Liability Period; submission of “As- built’’ drawings and any other related
documents; and other item of work as may be required to be carried out for
completing the work in accordance with the drawings and the provisions of the
contract and to ensure safety.
( B ) Bridge Works
provision of foundations, piers abutments and bearing; prestressed/reinforced
cement concrete superstructure; wearing coat, hand railings, expansion joints,
approach slabs, drainages spouts/ downtake pipes, arrangements for fixing light
posts, water mains, utilities etc; provision of suitably designed protective works;
providing wing/return walls; provision of road markings, road signs etc.; all aspects
of quality assurance; clearing the site and handing over the works on
completion; rectification of the defects during the Defects Liability Period and
submission of “As-built” drawings and other related documents; and other items
of work as may be required to be carried out for completing the works in accordance
with the drawings and the provisions of the contract and to Insure safety
(C) Other Items [CL.1.1]
Any Other Items as required to fulfill all contractual obligations as per the Bid
10. The following documents also form part of the Contract: [CL.2.3(9)]
As per clause 2-3
11. The law which applies to the Contract is the law of Union of India [CL.3.1]
12. The language of the Contract documents is English [CL.3.1]
13. Limit of subcontracting 25% of the Initial Contract Price [CL.7.1]
14. The Schedule of Other Contractors [CL.8]
15. The Schedule of Key Personnel As per Annex – II to Section I [CL.9]
16. The minimum insurance cover for physical property, injury and death [CL13]
is Rs. 5 lakhs per occurrence with the number of occurrences limited
to four. After each occurrence, the contractor will pay an additional
premium necessary to make insurance valid for four occurrences
17. Site Investigation report [CL.14]
18. The Site Possession dates shall be 2nd day from Letter of Acceptance [CL.21]
19. The period for submission of programme for approval of the engineer [CL. 27.1]
shall be 21 days from the issue of Letter of Acceptance.
20. The period between program updates will be 01 days. [CL.27.3]
21. The amount to be withheld for late submission of an updated [CL. 27.3]
programme shall be Rs 0.50 lakhs
22. The following events shall also be Compensation Events [CL. 44]
Substantially adverse ground conditions encountered during the
course of execution of work not provided for in the bidding document.
(i) Removal of underground utilities detected subsequently
(ii) Significant changes in classification of soil requiring
additional mobilization by the contractor, e.g. ordinary soil
to rock excavation,
(iii) Removal of unsuitable material like marsh, debris dumps,
etc. not caused by the contractor.
(iv) Artesian conditions
(v) Seepage, erosion landslide
(vi) River training requiring protection of permanent work
(vii) Presence of historical, archeological or religious structures, monuments
interfering with the works
(viii) Restriction of access to ground imposed by civil, judicial, or military authority
23. The currency of the Contract is Indian Rupees [CL. 46]
24. The formula (e) for adjustment of prices are as under: [CL.47]
If any of the commodities like Cement, Steel or Bitumen are not
found applicable in a work, the weight component of that
commodities {i.e. ‘Cement’ (Pc), ‘Steel’ (Ps) or ‘Bitumen' (Pb) as
indicated in SBD for the purpose of Price Adjustment} shall be
clubbed with the weight component of ‘Other Material’ (Pm), such
that the gross % weight of the components shall remain as 100% .
R = value of work as defined in Clause 47.1 of Conditions of Contract
Adjustment for labour component
(i) Price adjustment for increase or decrease in the cost due to
labour shall be paid in accordance with the following formula:
VL = Increase or decrease in the cost of work during the
month under consideration due to changes in rates for
L0 = The consumer price index for industrial workers for the
State on 28 days preceding the scheduled date of
opening of technical Bids as published by Labour
Bureau, Ministry of Labour, Government of India
Li = The consumer price index for industrial workers for the
State for the month under consideration as published by
the Labour Bureau, Ministry of Labour, Government of
Pl = Percentage of labor component of the work.
Adjustment for cement component.
(ii) Prices adjustment for increase or decrease in the cost of
cement procured by the contractor
Vc = Increase or decrease in the cost of work during the
month under consideration due to changes in rates
C0 = The all India wholesale price index for Ordinary
Portland Cement on 28 days preceding the
scheduled date of opening of technical bid as
published by the Office of the Economic Adviser,
Department for Promotion of Industry and Internal
Trade, Ministry of Commerce & Industry.
Ci = The all India average wholesale price index for
Ordinary Portland Cement for the month under
consideration as published by Office of the
Economic Adviser, Department for Promotion
of Industry and Internal Trade, Ministry of
Commerce & Industry.
Pc = Percentage of cement component of
Adjustment for steel component
(iii) Price adjustment for increase or decrease in the cost of steel procured by the
contractor shall be paid in accordance with the following formula
Vs= Increase or decrease in the cost of work during the month under
consideration due to changes in the rates for steel
So= The all India wholesale price index for steel (Mild Steel - Long Products
Rebars) on 28 days preceding the date of opening of Bids as published by the
Office of the Economic Adviser, Department for Promotion of Industry and
Internal Trade, Ministry of Commerce & Industry.
Si= The all India average wholesale price index for steel (Mild Steel - Long
Products Rebars) for the month under consideration as published by
Office of the Economic Adviser, Department for Promotion of Industry and
Internal Trade, Ministry of Commerce & Industry.
Ps = Percentage of steel component of the work
Note : For the application of this clause, the index of Mild Steel- Long
products Rebars has been chosen to represent the steel group.
Adjustments of bitumen component
(iv) Price adjustment for increase in the cost of bitumen shall be paid in
accordance with the following formula
Vb = Increase or decrease in the cost of work during the month under
consideration due to changes in rates for bitumen.
Bo = The official retail price of bitumen at the IOC depot at the nearest
centre on the day 28 days prior to the scheduled date of opening of
Bi = The official retail price of bitumen of IOC depot at the nearest
centre for the 15th day of the month under consideration.
Pb = Percentage of bitumen component of the work
Adjustment of POL (fuel and lubricant) component
(v) Price adjustment for increase or decrease in cost of POL (fuel and
lubricant) shall be paid in accordance with the following formula
Vf = Increase or decrease in the cost of work during the month under
consideration due to changes in rates for fuel and lubricants.
Fo = The official retail price of High Speed Diesel (HSD) at the existing
consumer pumps of IOC at the nearest centre on the day 28 prior to
the date of opening of Bids.
Fi = The official retail price of HSD at the existing consumer pumps of
IOC at the nearest centre for the 15th day of the month of the under
Pf = Percentage of fuel and lubricants component of the work
Note: For the application of this clause, the price of High-Speed diesel Oil has
been chosen to represent the fuel and lubricants group.
Adjustment for Construction Machinery
(vi) Price adjustment for increase or decrease in the cost of plant and
Machinery spare procured by the Contractor shall be paid in
accordance with the following formula
Vp= Increase or decrease in the cost of work during the month under
consideration due to changes in rates for plant and machinery spares
P0 = The all India wholesale price index for manufacturer of
machinery for mining, quarrying and Construction for the month
under consideration as published Office of the Economic Adviser,
Department for Promotion of Industry and Internal Trade,
Ministry of Commerce & Industry.
Pi = The all India average wholesale price index for manufacturer of
machinery for mining, quarrying and Construction for the month
under consideration as published Office of the Economic Adviser,
Department for Promotion of Industry and Internal Trade,
Ministry of Commerce & Industry.
Pp = Percentage of plant and machinery spares component of the work.
Note: For the application of this clause, index of Heavy Machinery and parts
has been chosen to represent the Plant and Machinery Spares group
Adjustment of other materials Component
(vii) Price adjustment for increase or decrease in cost of local materials
other than cement, steel, bitumen and POL procured by the contractor
shall be paid in accordance with the following formula
Vm = Increase or decrease in the cost of work during the month under
consideration due to change in rates for local materials other than
cement, steel, bitumen and POL.
M0 = The All Indian wholesale price index (all commodities) on
days preceding the scheduled date of opening of technical Bids, as
published by the Office of the Economic Adviser, Department for
Promotion of Industry and Internal Trade, Ministry of Commerce
Mi= The All India wholesale price index (all commodities) for the
month under consideration as published by the Office of the
Economic Adviser, Department for Promotion of Industry and
Internal Trade, Ministry of Commerce & Industry.
Pm = Percentage of local material components (other than cement,
steel, bitumen and POL) of the work.
The following percentage will govern the price adjustment for the
entire contract:
1. Labour - Pl . 15.253 %
2. Cement – Pc 5.497 %
3. Steel - Ps 29.598 %
4. Bitumen - Pb 0.078 %
6. Plant & Machinery Spares Pp. 10.171 %
7. Other Materials - Pm. 39.403 %
25. The proportion of payments retained (retention money) shall be 6% {CL. 48}
from each bill subject to a maximum of 5% of final contract price.
26. Amount of Liquidated damages for For Whole of work {CL.49}
delay in completion of works (1/2000)th of the Initial contract
price, rounded off to the nearest
Thousand, per day. For sectional
Completion (wherever specified In
item 6 of Contract data) (1/2000)th of
initial contract price for #5 km
Section, rounded off to the nearest
thousand per day.
27. Maximum limit of liquidated damages 10 percent of the Initial {CL. 49}
For delay in completion work Contract Price rounded off to
the nearest thousand
28. Amount of Bonus for early completion Amount of bonus for early
completion of work shall be given
as per CL.50 of Section-3
29. Maximum limit of bonus for early 5 percent of the Contract {CL. 50}
Completion of work Price
30. The amount of the advance payment are: {CL. 51 & 52}
#Nature of Advances Amount (Rs.) Conditions to
i Mobilization 10% of the contract On submission of unconditional
Price Bank Guarantee. (to be drawn
before the end of 20% of the
contract period). The contractor
may furnish four bank guarantees of
2.5 % of each valid for the full
ii Equipment 90% for new and 50% of After equipment is brought to site
depreciated value for old (provided the Engineer is
equipment. Total amount satisfied That the equipment is
equipment. Total amount satisfied That the equipment is
will be subject to a required for performance of the
maximum of 5% of the contract) and on submission of
Contract Price unconditional Bank Guarantee for
amount of advance
iii Secured Deleted
Brought to site
(The advance payment will be paid to the Contractor no later than 28 days after
fulfillment of the above conditions).
31. Repayment of advance payment for mobilization and equipment {CL. 51.3}
The advance loan shall be repaid with percentage deduction from the interim
payments certified by the Engineer under the Contract. Deduction shall
commence in the next Interim Payment Certificate following that in which the
total of all such payments to the Contractor has reached not less than 20 percent
of the Contract Price or 6 (six) months from the date of payment of first
installment of advance, whichever period concludes earlier, and shall be made at
the rate of 20 percent (collectively for both Mobilization Advance and
Equipment Advance) of the amounts of all Interim Payment Certificate until
such time as the loan has been repaid, always provided that the loan shall be
completely repaid prior to the expiry of the original time for completion pursuant
to Clause 17 and
33. The securities shall be for the following minimum amounts equivalent {CL. 52}
As a percentage of the Contract Price:
Performance Security for 5 percent of contract price plus Rs. …………….. (to be
decided after evaluation of the bid) as additional security in terms of ITB Clause
The standard form of Performance security acceptable to the Employer shall be
an unconditional Bank Guarantee of the type as presented in Section 8 of the
Bidding Documents.
34. The Schedule of Operating and maintenance Manuals…..N/A. {CL. 58}
35. The date by which “as– built” drawings (in scale as directed) in 2 sets {CL. 58}
are required within 28 days of the issue of certificate of completion of the whole
or section of the work, as the case may be.
36. The amount to be withheld for failing to supply “as built” drawings {CL. 58} by
the Date of completion required is Rs 5.0 Lakhs.
37. The following events shall also be fundamentals breach of contract: {CL.59.2}
“The Contractor has contravened Sub- clause 7.1 and Clause 9 of GCC”
38. The percentage to apply the value of the work not completed representing {Cl 60}
the Employer’s additional cost for completing the Works shall be 20 percent.
TECHNICAL SPECIFICATION
CIVIL WORK ITEMS SPECIFICATIONS
Technical Specification
Item No.1: Dismantling of flexible pavements (Bituminous surface and Crust) and
disposal of dismantled materials with all lead and lift, stacking serviceable and
unserviceable materials separately as directed by engineer in charge. Dismantling
of Flexible Pavement (Bituminous Surface & Crust)
1. Scope of Work
This item includes dismantling/removal of existing flexible pavement layers comprising
bituminous surface (such as BC, DBM, BM, SDBC, etc.) along with underlying granular crust
(WMM/WBM/GSB), including disposal of dismantled materials with all leads and lifts, and
stacking of useful materials as directed by the Engineer-in-Charge.
2. Method of Execution
The dismantling shall be carried out using suitable mechanical means such as milling
machines, pneumatic breakers, jackhammers, or other approved equipment depending on
site conditions.
Bituminous layers shall be removed carefully to avoid damage to adjacent structures and
utilities. The operation shall proceed systematically to ensure uniform removal up to the
required depth or as directed. Granular layers shall be excavated after removal of
bituminous layers.
3. Segregation of Materials
The dismantled materials shall be segregated into serviceable materials (reusable
aggregates, milled bituminous material, etc.) and unserviceable materials (debris,
contaminated material, etc.).
Serviceable materials shall be stacked neatly at designated locations as directed by the
Engineer-in-Charge for reuse.
Unserviceable materials shall be disposed of at approved dumping locations.
Disposal of dismantled materials shall include all leads and lifts as per site
The contractor shall arrange transportation, loading, unloading, and disposal in
compliance with environmental guidelines and local authority regulations.
5. Precautions & Safety
Necessary precautions shall be taken to control dust, noise, and traffic disruption.
Proper traffic management including barricading, signage, and diversion shall be
ensured during dismantling operations.
Adjacent structures, utilities, and pavement not intended for removal shall be
6. Tools & Equipment
Mechanical equipment such as pavement milling machines, excavators,
jackhammers/breakers, and tippers/dumpers shall be used. All equipment shall be in
good working condition.
7. Measurement and Payment
Measurement and Payment shall be made in cubic meters (Cum) unless otherwise
specified. The quantity shall be calculated based on the actual volume of pavement
dismantled as per drawings or as directed by the Engineer-in-Charge.
The rate shall include dismantling of bituminous and granular layers, loading,
unloading, transportation, all leads and lifts, segregation and stacking of serviceable
materials, disposal of unserviceable materials, labour, machinery, tools, incidental
charges, traffic management, and safety measures.
Item NO. 2: Dismantling the existing structure including removing and stacking
the dismantled materials as and where directed. C.C. work or R.C.C. work
smantling of Existing Structures (C.C. / R.C.C. Work)
The work to be done under this item shall consist of dismantling of one or more
patches/damaged panels of road slab / C.C. lining in canal bed/slope having different
thickness.The work also includes to dismantling the concrete other than lining work as
directed by Eningeer-in-charge. The work consists of breaking up of C.C. lining work
including all relevant items.
Before dismantling is taken up the patches of damaged panels required to be
dismantled shall be marked in bed and slope and proper shoring and under-pinning
shall be provided for the safety of the adjoining C.C. lining. The work shall be carried
out in such a way that no damage is caused to the adjoining property/adjoining lining.
Dismantling shall be commenced in a systematic manner. All materials, which are
likely to be damaged, shall be dismantled first. The dismantled materials shall be
disposed off outside the canal bank as directed by Engineer-In-Charge.
Any serviceable material obtained during dismantling shall be separated out and
stacked properly as directed.
On completion of the work, the site shall be cleared off all debris, rubbish and cleaned
No explosives shall be allowed for dismantling.
Contractor shall have to note that the NMC may be in a flowing condition. So the proper
care shall be required to be taken during dismantling.
2 Measurement and Payment (Item No.2)
Measurement of dismantling of C.C. / R.C.C. shall be made on square metre basis.
The rate includes cost of all labours and tools used for dismantling, disposing off of all
stuff as directed.
Item No. 3: Excavation for foundation including sorting out and stacking of useful
materials and disposing off the excavated stuff up to all lead. (A) Loose
3.1 SCOPE OF WORK: -
(a) The section covers specification for Item No.
(b) The work to be done under these specifications shall consist of furnishing all
tools, equipments, plant, labour and material required for carrying out
excavation in all strata, conveyance and disposal of the excavated stuff in
required leads up to maximum of 1 km, or as mentioned in the description of
item. The scope of work includes excavation and cleaning the silt including
dewatering and maintaining the excavated slopes and trenches for the canal,
drainage, diversion channels, drain ditches, trenches for pipes, training and re-
gradation of nalas and catch-water drains, excavation for diversion of River
bed/ Kotar/ nalas, excavation for service road and inspection path, excavation
for foundation of structures, approach channel and tail channel for the
structures, and excavation required for removal of diversion bund constructed
across the canal / river bed and nearby river flow/stream for diversion of
NMC/River water as directed by the Engineer-in-Charge, and all operations
covered within the intent and purpose of these items. The scope of work
includes excavation in all sorts of soil including soft & hard murrum &
depositing the excavated stuff up to all. lead & all lifts.
(c) The Contractor shall take all measures and care to maintain the existing
communication and utility lines telephone, electricity, pipeline of all type etc.
which are coming within the work area till alternative arrangement by shifting
these lines are made. Precautionary measures such as providing night lamp,
fencing, signals, signboards etc. shall be provided by the Contractor at his own
cost to avoid accidents on the communication lines because of construction
(d) The work to be done under these specifications shall consist of clearing the land
width including removing the trees up to 0.50 m girth, bushes shrubs etc.
including depositing the materials outside the canal land width as directed,
clearing the silt deposited in river bed by digging the same to the required bed
level and gradient including depositing the excavated earth regularly in spoil
bank for utilizing the same for preparing the bank after breaking clods as and
where directed and excavation of canal in all sorts of soil including soft and hard
murrum including depositing the excavated stuff in uniform layers in canal
banks or as and where directed in varying lead upto all lead and with all lifts.
(a) The foundation levels shown on the plans accompanying the tenders are
tentative and the actual levels shall be decided by the Engineer - in -
Charge on the basis of construction stage drawing & actual site
conditions revealed after opening of the foundation. The construction
stage drawing will be provided stagewise and work shall be carried out
as directed by Engineer - in – Charge.
(b) The excavation for canal structures shall be done for all type of soils,
sand, murrum, soft rock & hard rock etc. according to the dimensions
and size shown on the drawings. These drawings are tentative and
subject to change but drawing issued at the time of execution shall be
considered final.
(c) Before start of the excavation for the first time the free water above the
ground level of the particular location of the structure shall have to be
dewatered. Then after the level of the ground surface whether in dry, wet
or slushy conditions so obtained shall be considered as initial level for
the purpose of measurements for excavation. However for such cases,
the decision of the Engineer-in-Charge for fixing initial level shall be
considered final.
(d) Blasting shall be done in such a manner as not to cause over breakage
which is excessive in the opinion of the Engineer-in-Charge. Special care
shall be taken to prevent over breakages or loosening of material on
bottom and side slopes against which foundation concrete is to be done.
Final cutting for 45 cm in hard rock shall be carried out by controlled
blasting or chiseling or with the help of pneumatic pavement breakers.
If excavation is required to be done within 30 m from the existing
structure the same shall be carried out by chiseling without resorting to
blasting for which no extra rate shall be payable. The method of drilling
and blasting to be resorted to for hard rock excavation shall be got
approved from the Engineer-in-Charge.
(e) The pay line quantities will be to the dimensions shown on the drawings.
If the payline is not shown on drawing or there is any discrepancy in
drawing the content of para 1.8.4 shall govern. However, the excavation
shall be as judged safe and all loose materials shall be removed prior to
back filling and compaction.
(f) The recommended side slopes for pay lines are considered as quite safe
and no shoring and strutting is necessary. However, if necessity arises,
the contractor shall have to provide shoring and strutting and
scaffolding and rate for excavation will be treated as inclusive of such
(g) Whenever ground water is met with during excavation for structures,
dewatering shall be resorted to by the contractor. No extra claim for
dewatering shall be entertained.
(h) The excavation of structure shall include excavation in all types of soils
including yellow, sandy or gravelly soil, sand, soft and hard murrum, soft
& hard rock, wet, slushy or moist soil including capillary fringe.
(i) During rock excavation the contractor will not be allowed to dispose off
the rubble. Surplus usable rubble will be allowed to be used in
construction of rock-toe work, masonry work. pitching, road metal etc.
subject to approval of the Engineer-in-Charge regarding usability. SSNNL
will charge the cost for using such rubbles as per prevailing S.O.R.
(j) The diversion to cross the river shall be prepare to have access for
SSNNL staff and local users without claiming extra cost.
3.2.2 Over Excavation: -
(a) Over excavation shall not be done beyond the defined pay line. If any
such over excavation is done, the same shall be filled back with suitable
soil and properly compacted or concrete filled as required or as directed
by the Engineer-in-Charge. No extra claim for such over excavation,
filling and compaction of concrete / soil shall be entertained.
(b) The usable material removed from the excavation for structures shall be
used for back fill and embankment and bridge approaches, otherwise it
shall be disposed off as directed by the Engineer-in-Charge.
3.2.3 Dewatering Trenches and Wet Excavation:
Surface or subsoil water met with during canal excavation shall be
diverted to nearby drain \ nalla by cutting an open channel within the
canal section to be excavated. When the drain \ nalla bed is higher than
the sub soil water level met with bailing out by suitable means or
pumping shall be resorted to for dewatering subsoil water below the
drain \ nalla bed level. In case where topography of the area is such that
surface water is not possible to be drained off by excavating the channel,
bailing out by suitable means or pumping shall be resorted to and
separate payment will not be made for the dewatering. No distinction
shall be made as to whether the material being excavated is dry, moist
or wet or slushy condition.
(c) The contractor should have to excavate the foundation of structure in
under water level condition also i.e. under wet / slushy condition after
providing sufficient arrangement of dewatering. The material excavated
under water level condition which requires intermediate stacking for
drying shall have to re-handle to use in the banking as per relevant
provision made in contract. No extra payment for drying out of soil,
rehandling of dry soils to the embankment etc. shall be given. The
contractor shall have to excavate the wet and saturated soils met with
above subsoil water level. (Including capillary fringe). No payments for
extra efforts for excavation under this condition shall be made.
3.2.4 Pay Line :-
(a) Regardless whether the excavation for construction of the structure,
precedes or follows the excavation of the canal at the site of structure,
irrespective of shape of canal, measurement for excavation for
structures shall include only the required excavation outside the pay
lines for the canal excavation and below the original ground surface
measured to the dimensions and slopes specified below.
Sr. Strata of excavation Type Slope for
1 Silty sand, poorly graded sand – SM 1.5 to
2 Well graded sand, gravelly SW 2:1
sand, little or no fines Poorly
graded sand or gravelly sand, SP
little or no fines
Silty sand, poorly graded sand –
silt mixtures – Clayey sand, SM
poorly graded sand clay
3 Inorganic clay, gravelly CL 1.25:1
clay, sandy clay, silty clay, lean
clay of low plasticity
Inorganic silt, silty or clayey fine
sand or clayey silt of medium MI
Inorganis clay, gravelly clay,
sandy clay, silty clay, lean clay CI
of medium plasticity
4 Soil, soft murrum & Hard 1 to
5 Soft Rock 0.50 to
6 Hard Rock 0.25 to
(b) In case of structures, 60 cm extra excavation shall be done where
compaction is specified by pneumatic tampers at designed foundation
level shown on the drawings or the actual foundation level provided
during excavation. Payline shall be considered as per drawing in case the
actual foundation level is as per design foundation level. If the actual
foundation level is lower than the design foundation level, the payline
shall be considered as per drawing up to designed foundation level and
as per actual excavation beyond the designed foundation level. In case if
the actual foundation level is higher than the designed foundation level,
the payline shall be considered as per drawing considering designed
foundation level but shall be restricted upto actual foundation level.
(c) Lead specified for excavation shall be measured from the block of 15 m
of the foundation to the place of dumping as a straight-line distance i.e.
shortest possible distance.
3.2.5 Measurement & Payment (Item No. 3)
(a) No extra rate shall be payable for excavation below designed depth
shown on the drawings. No claim for extra rate shall be entertained for
any excavation that may be required to be done for widening or
deepening the foundations consequent upon lowering of foundation
below the level shown on the drawings. The works so done will be paid
at the tendered rates of the item.
(b) No extra rate shall be payable for excavation of loose boulders which are
embedded in soil and can be removed by pick bar and shovel without
(c) Items No.3 of excavation of structures and regrading of nallas shall be
measured and paid on cubic metre basis. The quantity of excavation shall
be computed from the initial and final cross sections as described in
relevant para under excavation. No payment shall be entertained for any
excavation beyond payline. The rate shall include providing all the
materials, tools, plants and labour required for excavation.
(d) The regradation for tail channel and approach channel for structures &
diversion of drains / nalla shall be done according to the dimensions &
grade as shown on the drawings or as instructed by the Engineer-in-
(e) The rate for the respective items of excavation for foundation of
structures and regarding of nallas includes the excavation in all lifts,
disposal of excavated stuff as stipulated in the specifications, in the area
for the road/approach preparation providing all tools, plant, machinery,
survey instruments, labour and material, preparation and maintenance
of haul roads, transport of excavated material to temporary stock piles,
rehandling of excavated material temporarily deposited in stockpiles to
disposal areas or points of final use, disposal of excavated waste
materials, maintaining excavated slopes and trenches, etc complete. The
cost of sorting and stacking the useful excavated material above high
flood levels will not be paid extra and shall be deemed to have been
included in the unit rate of completed item of excavation.
(f) The rate also includes cost of all incidental operations required for
carrying out the work in accordance. with the specifications. The
intermediate payment will be made at 98% of the full rate. The
remaining 2% will be paid when the canal section is excavated as per
designed profile true to the line and levels and finally accepted on
completion by the Engineer – in – Charge. The payment shall be released
after completion of the work.
Item No. 4: Providing and Laying Plain Cement Concrete (M15) in Foundation &
Item No. 5: Providing and laying in position Ready Mixed M-300 grade concrete for
reinforced cement conctere work , using cement content as per approved Design
Mix manufactured in fully automatic batching plant and transported to site of work
in transit mixer for a lead up to 10 kms having continuous agitated mixer,
manufactured as per mix design of specified grade for reinforced cement concrete
work including pumpingof R.M.C. from transit mixer to site of laying, excluding
thecost of centering shuttering finishing and reinforcementincluding cost of
admixtures in recommended proportions asper IS: 9103 to accelerate/ retard
setting of concrete, improveworkability without impairing strength and durability
as perdirection of the Engineer - in - charge. Without Fly Ash (Mincement level as
per latest IS 456 shall bemaintained)(Cement level 475 kg )
RCC Raft/ Casing and RCC Wall
Item No. 5(a): Providing and laying in position Ready Mixed M-250 grade concrete
for reinforced cement conctere work , using cement content as per
approved Design Mix manufactured in fully automatic batching plant
and transported to site of work in transit mixer for a lead up to
kms having continuous agitated mixer, manufactured as per mix
design of specified grade for reinforced cement concrete work
including pumping of R.M.C. from transit mixer to site of laying,
excluding the cost of centering shuttering finishing and
reinforcement including cost of admixtures in recommended
proportions as per IS:9103 to accelerate/ retard setting of concrete,
improve workability without impairing strength and durability as per
direction of the Engineer - in - charge. Without Fly Ash (Min cement
level as per latest IS 456 shall be maintained)(Cement level 450 kg )
Item No. 5(b): Providing and laying in position Ready Mixed M-200 grade concrete
for reinforced cement conctere work , using cement content as per
approved Design Mix manufactured in fully automatic batching plant
and transported to site of work in transit mixer for a lead up to
kms having continuous agitated mixer, manufactured as per mix
design of specified grade for reinforced cement concrete work
including pumping of R.M.C. from transit mixer to site of laying,
excluding the cost of centering shuttering finishing and
reinforcement including cost of admixtures in recommended
proportions as per IS: 9103 to accelerate/ retard setting of concrete,
improve workability without impairing strength and durability as per
direction of the Engineer - in - charge. Without Fly Ash (Min cement
level as per latest IS 456 shall be maintained)
Item No. 12: Construction of 100 mm thick dry lean cement concrete Sub- base
over a prepared sub-grade with coarse and fine aggregate
conforming to IS: 383, the size of coarse aggregate not exceeding
mm, aggregate cement ratio not to exceed 15:1, aggregate gradation
after blending to be as per table 600-1, cement content not to be less
than 150 kg/ cum, optimum moisture content to be maintain during
onstruction, concrete strength not to be less than 10 Mpa at 7 days,
mixed in a batching plant, transported to site, laid with a paver
compacting with 8-10 tonnes vibratory roller, finishing and curing as
per MoRTH clause
Item No. 13: Construction of 300 mm thick unreinforced PCC M40 pavement with
joints, joint filler, sealant over 100 mm DLC as per MoRTH clause
Item No. 15: Providing & laying 12.5 cm thick CC lining M15 in side slope with
membrane curing, weigh batching, mixing, transporting, placing,
vibrating, dressing, curing etc. complete. (MANUALLY WITH
CONVENTIONAL MIXER)
a. Only Ordinary Portland Cement (OPC) of approved brand shall be used only after prior
approval of Engineer-In-Charge for concrete lining and other RCC construction.
b. Contractor shall only be permitted to use Ordinary Portland Cement (OPC) from approved
cement manufacturer approved by the SSNNL. The contractor shall note this and arrangement for
procurement of cement shall have to be made accordingly.
However, if required Nigam may direct to the contractor for the use of any kind of suitable cement
confirming to relevant IS on the basis of the test results of soil in contact with the concrete, water
and aggregates during the course of execution. The contractor shall have to make arrangements
for procurement of cement from approved manufactures accordingly.
c. Immediately upon receipt of cement at the site of the work, cement shall be stored separately in
dry, watertight and properly ventilated structures. All storage facilities to protect cement from
dampness shall be subject to approval by the Engineer-In-Charge and shall be such as to permit
easy access for inspection and identification. In case of storage of bag cement, the bags shall not
be piled more than 10 bags height and shall be arranged in headers & stretchers fashion as close
as possible. Sufficient cement shall be kept in stock for completion of concreting undertaken in
accordance with the programme given by the Contractor. Cement shall be used in order of receipt
and cement older than 90 days shall not be used. If the cement stack in the such position that it
cannot be counted than the stack shall be re-arrange in such a manner that it can be counted easily
and concrete work will be stop till this period for re-arrangement.
c. The cement to be used on work shall be brought sufficient in advance before using the cement in
works so that SSNNL can conduct minimum required test to ascertain its quality. The Contractor
shall also furnish the manufacturer’s test results conducted at the factory site in the
manufacturer’s quality control laboratory for each lot/batch of cement which is brought to the
Frequency for cement testing (Physical properties) are as under as per IS : 3535-1986.
Weight No. of Samples Remarks
of lot in to be taken
Up to 2 The frequency for
100 chemical testing
101 to 3 for cement to be
200 decided by the
201 to 4 Engineer-In-
301 to 5 lot/batch
e. The Contractor shall create a suitable and adequate infrastructure for procuring, handling,
storing and conveying bulk cement to batching plant at site, with advance planning of work to
be done in next fifteen days, as approved by Engineer-In-Charge.
2. Fine Aggregate
(a) All the aggregates shall conform to IS : 383-1999, or its latest version and as directed by
Engineer-In-Charge. Sand to be used shall be natural as obtained from the river bed and the maximum
size shall be limited to 4.75 mm.
Fine aggregates will be tested for their gradation, specific gravity, water absorption, fineness
modulus, soundness, petro-graphic analysis, deleterious constituents and alkali aggregate
reactivity. Due allowance shall be made if at the time of mixing, the sand is wet. The exact extent
of such allowance or bulk age shall depend upon the quantity of moisture in sand and it shall
be decided by the Engineer-In-Charge.
(b) It may be pointed out in particular that the large quantity of sand is available in the river Banas
(Patan) only. The Contractor shall procure approved quality of sand from any other source if required
at his own cost.
(a) Sand shall consist of hard, inert, dense, durable and uncoated siliceous gritty materials. It shall
be free from injurious amount of dust, lumps soft and flaky particles, shale, alkali, organic matter, loam
and other deleterious substances. The maximum percentage of each of the deleterious substance in
sand as delivered to the mixer shall not exceed the following values.
Limits of deleterious material
(i) Coal & lignite 1.0 Percent by
(ii) Clay lumps 1.0 Percent by
(iii) Material finer than 75 3.0 Percent by
micron I.S sieve weight
(iv) Shale 1.0 Percent by
(v) Total of percentages of 5. Percent
all deleterious material by weight
a. Sand shall be free from injurious amount of organic impurities and sand that
are producing a colour (obtained by dissolving 9 grams of chemically pure (c.p.) ferric
chloride and 1 gram of (c.p.) cobalt chloride in 100 ml of water to which one third ml of
hydro chloric acid has been added) darken than the standard in the test (organic test)
for organic impurities shall be rejected.
(a) Sand shall be well graded so as to impart good workability and good finishing. Sieve analysis
of natural sand shall conform to the following limits of gradation.
IS Sieve Cumulative percentage of weight passing through sieve
600 micron 30-64
300 micron 10-40
150 micron 3-10
(b) Deviations from the prescribed limits of cumulative percentage retained on sieve 10 mm,
mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron and 150 micron IS sieves shall be permitted provided
total of such deviations do not exceed 5 percent. No deviation from the prescribed limit shall be
permitted for cumulative percentage retained on 600 micron IS Sieve.
(iv) Fineness Modulus
(a) Sand shall have a fineness modulus between 2.4 to 3.0 subject to the gradation specified in the
preceding paragraph.
(b) The modulus shall be computed by adding cumulative percentage of sand retained on the
standard screens 4.75 mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron, 150 micron IS sieves and
dividing the sum by 100. Gradation of sand shall be so controlled that the fineness modulus of atleast
9 out of 10 consecutive test samples of finished sand shall not vary by more than 0.10 from the average
of 10 test samples. Sand having any deviation from the specified range of gradation and fineness
modulus shall not be permitted to be used in work without the written permission of the Engineer-In-
The following testing frequencies shall be maintained for the same source of Fine Aggregates:
Sr. Name of Test Minimum number of
No. test specified
1. Gradation for fineness Daily one test. If the
Modulus variation of daily F.M.
values is more than 0.1,
then frequencies may be
2. Silt Content Daily one test
3. Moisture Content Daily one test
4. Sp. gravity and water Twice in a concreting
absorption soundness, working season.
alkali-aggregate
reactivity, Petrographic
All sand shall be stored on the site of work in such a manner as to prevent intrusion of foreign
3 Coarse Aggregate
(a) Coarse aggregate for concrete shall consist of clean, hard, dense and durable crushed metal free
from vegetable matter and shall be free from thin elongated soft pieces, organic or other deleterious
matter. It shall have no adherent coating. It shall be from a source approved by the Engineer-In-
Charge. Coarse aggregates shall confirmed to IS:383-1970 and IS:515-1959. Predominantly flaky
aggregates shall not be used. All coarse aggregates shall be washed and/or screened by the Contractor,
if required. The percentage of deleterious substance in coarse aggregate shall not exceed the following
Material passing 150 micron
IS sieve screen 1 percent by weight
Shale by weight 1 percent by weight
Coal and Lignite 1 percent by weight
Soft fragments 3 percent by weight
Other deleterious substance 1 percent by weight
Clay lumps 1 percent by weight
Coarse aggregate will be tested for their gradation, specific gravity, water absorption, impact
and abrasion values, soundness, petrographic analysis, deleterious constituents, flakiness and
elongation indices and alkali aggregate reactivity.
(b) The sum of the percentage of all the deleterious substances shall however, not exceed 5 percent
by weight. The coarse aggregate shall satisfy abrasion, soundness, crushing and alkali aggregate
reactivity tests and water absorption results as laid down in IS: 383 – 1970 and other relevant Indian
Standard Specifications.
(c) The flakiness and elongation index (Total) should not exceed 35% with maximum independent
limit of 20% for any types of concrete.
The crushed aggregates are available in ample quantity from the quarries near sayla. The
Contractor should assess for sources of availability of required quality and quantity of coarse
aggregate before submitting his offer. The Contractor shall procure approved quality of
aggregates from any other sources for which no extra claim shall be entertained.
(a) Coarse aggregate shall be well graded and shall have a maximum size of 20 mm.
(b) The gradation shall give a dense concrete of the specified strength and consistency that will
work readily into position without segregation and without the use of excessive water content.
(c) The grading of coarse aggregate shall be in the nominal sizes as mentioned in Table II of IS:
– 1970 reproduced below in respect of 40 MSA and 20 MSA.
Table-II of IS: 383 –
IS Sieve Percentage passing for aggregate of nominal size.
(In concrete for canal lining, the percentage of 4.75 to 10 mm fraction shall be reduced to about
5 to 10 percent of the total coarse aggregate ). However, the exact gradation required to
produce a dense concrete ( for C. C. Blocks )of specified strength and desired workability shall
be decided by the Engineer-In-Charge. In case of no fines concrete, the percentage of fines
fraction shall be determined by the Engineer-In-Charge.
(d) The material passing through the screen shall be in grade ranging from 40 mm to 4.75 mm.
Each grade of material shall be stacked 40 mm to 20 mm, 20 mm to 10 mm and 10 mm to 4.75 mm.
(e) Coarse aggregate shall consist of inert, clean, hard, strong, durable and structurally sound
particles of crushed stone and shall be free from thin elongated soft pieces, organic or other deleterious
matter, capable of developing good bond with cement paste and weather resisting, be unaffected by
water. It shall have no adherent coating of clay, silt, mud or any other adherent-coating. It shall be from
a source approved by the Engineer-In-Charge. Coarse aggregates shall confirm to IS:383-1999 and
(f) Coarse aggregates shall be washed and screened at the sources approved by the Engineer-In-
Charge. If necessary contractor shall remove all vegetation and other perishable substances and
objectionable amounts of other foreign and deleterious matter. The cost of washing and screening at
the source shall be borne by the contractor. In case the coarse aggregate brought to the site of work is
not washed and screened at the source the contractor shall make necessary arrangements for washing
and screening at the B&M plant and its cost shall be borne by the contractor.
(g) Following shall be maximum size of coarse aggregate for the different items of work.
Maximum nominal
Item of work. size of coarse
aggregate (MSA).
1 Foundation concrete and gravity 40 mm
retaining walls (mass concrete)
2 RCC rafts, piers, Abutments Barrels, 40 mm
Cutoff walls, Breast walls,
Transition walls, parapet wall and
staunching ring, etc.
3 Plain & RCC lining, RCC work in 20 mm
main and cross girders, Deck slab,
Wearing coat, Kerb, Parapet walls,
Approach slab, Pier caps, and other
thin walled members and in zones
of congestion caused by closely
spaced reinforcement bars.
4 For any other items of construction As specified in the
not covered under item 1 to 3 drawings or in case
it is not specified in
directed by the
The following testing frequencies shall be maintained for the same source of coarse aggregates.
Name of Test number of test
1 Gradation Daily one test for
each nominal size
2 Water Content Daily one test for
each nominal size
3 Silt Content Daily one test for
each nominal size
4 Sp. gravity and water Twice in a
Absorption, Impact or Abrasion concreting
value, Density, Soundness, Alkali working season.
aggregate reactivity, Petro-
graphic examination.
Flakiness and elongation Index :
Value of flakiness Value of Remarks
Index elongation
A. PCC/RCC of 20 % Combined maximum
all Grades. Maximum allowable limits of both
flakiness and elongation
Index shall be 35 %
(a) The aggregate shall be stacked in such a way as to prevent the admixture of foreign materials
such as soil, vegetable matter etc. Heaps of fine and coarse aggregates shall be kept separate. When
different sizes of fine or coarse aggregate are procured separately, they shall be stored in separate
stockpiles, sufficiently away from each other to prevent the materials at the edge of the piles from
getting intermixed.
(b) The aggregates shall be stockpiled adjacent to the mixer site so as to require minimum
rehandling and labour when conveyed to the mixer.
(c) The aggregates shall be placed on a dry hard patch of ground if available otherwise a platform
of planks or plain galvanized iron sheets or alternatively on a floor of dry bricks or a thin layer of lean
(d) The aggregates shall be kept free of dirt, rubbish, papers, vegetable matter and bidi, etc.
collected by the people.
(e) To minimize moisture variations the stock piles shall be spread over as large in area as possible
but kept low and fairly uniform in height preferably 1.25 to 1.50 meter and the lowest layer of about
30 cm height shall be allowed to act as drainage layer and not used till the end.
(a) Water used for mixing of concrete and mortar shall be free from injurious amounts of
deleterious materials. Potable water is generally considered satisfactory for mixing and curing.
(b) Where water is found to contain any sugar or an excess of acid, alkali or salt, the Engineer-In-
Charge will refuse to permit its use. As a guide the following table represents the maximum permissible
Permissible limit maximum
Organic 200 mg/l
Inorganic 3000 mg/l
Sulphate (as 400 mg/l
Chlorides (as 2000 mg/l for concrete not containing embedded steel
Cl) and 500 mg/l for reinforced concrete work.
Suspended 2000 mg/l
(c) The Contractor shall have to make his own arrangement for the identification of source of
water for the purpose of use in construction and curing of the concrete & mortar work & for other
miscellaneous work for his own use etc. If required Contractor may plan at his own way for the
alternative arrangement for getting the usable water confirming to IS-456-2000 ( Table-1 clause 3.5.4)
at his own cost. No separate payment shall be made on account of such alternative arrangement.
However, the approval of the Engineer-In-Charge shall have to be obtained for such installation of
alternative arrangements.
(d) The sample of water shall be tested before commencing the work. If the source is altered the
sample shall be tested for the same.
(a) The contractor shall prepare mix design of concrete in accordance with IS 456-2000, IS-10262,
SP:23 and relevant codes to achieve desired strength, durability and workability and using approved
ingredients viz. cement, fine aggregates, coarse aggregates, admixtures (if any) and water. The
ingredients of concrete shall be got tested and approved by the Engineer-In-Charge. The minimum
cement content, maximum free water cement ratio in mix design for grade of concrete mentioned in
the tender drawing shall be for as mentioned in table 4 & 5 of IS 456-2000 whichever is applicable,
unless otherwise specified in the drawing. The contractor shall ensure that the mix design done in such
a way that the minimum cement content are adhered to, if required by even using chemical admixture.
Contractor shall do the trial mixes in the presence of Engineer-In-Charge and the final trial mix which
satisfies all conditions of drawings, technical specifications and IS 456-2000 and other relevant codes
shall be approved by the Engineer-In-Charge. The rates to be quoted by the contractor for any grade of
concrete shall take in to the account the above requirement. The contractor shall not be eligible for any
claims for extra cost for using extra cements other than minimum cement content.
(b) (i) The SSNNL shall check and carry out necessary tests on mix design given by the contractor
in accordance with Para (a) above to determine its strength, workability, durability as well as
economy. For this purpose the contractor shall submit mix design and its details prepared by him to
the Engineer-in-Charge well in advance of commencement of work as directed by the Engineer-in-
Charge. In case the contractor get his mix design done outside Gujarat state, he shall bear the cost of
travel, boarding and lodging charges of two officers deputed by Engineer-In- Charge or
witnessing/finalizing mix design.
(ii) SSNNL reserves right to accept or reject the mix design given by the contractor and also to
direct him to use mix design given by the SSNNL. SSNNLL decision in this regards shall be final
and binding to the contractor.
(iii) Over and above specified in (a) above, if required SSNNL shall make a test to determine the
mix proportions required to produce the strength specified with the material to be used in the
work. (The necessary in gradient shall be provided to SSNNL, free of cost by the contractor.)
(c) During the execution of the work if the source of any ingredient of concrete changes then the
contractor shall inform the Engineer-In-Charge sufficiently in advance so as to allow him to proportion
a new mix design to attend the specified of strength of concrete. At that time the representative
samples of approved ingredient shall be supplied by the contractor to the Engineer-in-Charge without
any extra cost.
(d) The Mix shall be designed using representative samples of approved coarse and fine aggregates
as well as cement and water to be made available by the contractor to the SSNNL, to achieve the
required workability, cohesiveness, strength and durability at minimum level of cement. Mix design
studies and tests will be carried out by the contractor at his own cost in the SSNNL approved
(e) The proportion of mix-design ingredients shall be such that concrete has adequate workability
for conditions prevailing on the work in question and can be properly compacted with the means of
(f) The details of mix-design including the proportion of each separate size and grading of
aggregates and actual cement level required shall be declared to the contractor in writing by the
Engineer-in-Charge.
(g) As a result of para (d), if there is any subsequent change in mix- design similarly declared.
6 STRENGTH REQUIREMENT OF CONCRETE.
Ordinary Portland Cement (OPC) shall be used as per the Para 3.5.1.
The compressive strength requirements for the various grades of controlled concrete
shall be as given below:
Grade of Concrete Compressive test strength in N/m2 on 150 mm cube after mixing conducted in
accordance with IS 452-2000
In all cases the 28 days compressive strength specified in table shall alone be the
criterion for acceptance or rejection of the concrete. Where the strength of a concrete
mix as indicated by tests lies in between the strength for the two grades specified in
Table, such concrete shall be classified for all purposes as concrete belonging to the
lower of the two grades between which its strength lies.
7 PROPORTIONING CONCRETE:-
(a) Except when it can be shown to the satisfaction of the Engineer – in – Charge that supply of
properly graded aggregates of uniform quality can be maintained till the completion of the
work. Grading of aggregate shall be controlled by obtaining the coarse aggregates in different
sizes and blending them in the right proportions as required. Different sizes however shall be
stacked in separate stock piles. Required quantity of material shall be stockpiled several hours
preferably a day before use. Grading of coarse and fine aggregates shall be checked as
frequently as possible frequency for a given job being determined by the Engineer-in- Charge
to ensure that the suppliers are maintaining the uniform grading as approved for sample used
in the preliminary tests. In proportioning concrete, the quantity of both cement and aggregate
shall be determined by weight. Water shall either be measured by volume in calibrated tank or
weighed. All measuring equipments shall be maintained in clean and serviceable condition.
Their accuracy shall be periodically checked.
(b) To keep the specified water cement ratio constant as determined by mix design, moisture
content in both fine and coarse aggregates shall be determined by the Engineer-in- Charge. The
amount of mixing water shall then be adjusted to compensate for any variations noted in the
moisture content. For the determination of moisture content in the aggregates IS – 2386 –
(Part –III ) shall be referred to . Suitable adjustments shall also be made in the weight of
aggregates to allow for variations in weight of aggregates due to variations in their moisture
(c) Depending on the technical requirement, various size of aggregate may be required to be use
in various components of the structures. In that case, mix design will be given. The minimum
cement level for various grade of concrete with various size of aggregate shall be governed as
given in the table below.
(As Per Letter of NWRWS Dep’t Gandhinagar, MIS-102010/17/k-1 / dt.30/07/2021)
Type Of Nominal Standard
Concrete Aggregate Cement Level
Grade Of (In Kg.) For
Sr.No. Strength @
Concrete One Cubic
Days (In N/Mm2)
1 Plain M-10 40 MSA 220
2 Plain M-15 40 MSA 280
3 Plain M-15 20 MSA 300
4 Reinforced M-20 20 MSA 360
5 Reinforced M-20 40 MSA 330
6 Reinforced M-25 20 MSA 380
7 Reinforced M-20 40 MSA 360
4 Reinforced M-30 40 MSA 410
In that case, the minimum cement level for various grade of concrete with various size of
aggregate shall be as per IS 456-2000. The Grade Higher than mentioned in above table, the
mix design shall be carried out by contractor in Nigam private approved laboratory.
d. Actual cement level required for the aggregates to be used shall be determined by laboratory
tests, keeping in view the aggressive condition of salt, durability, workability, exposure
condition etc. as per I.S code provision. The mix proportions shall be selected to ensure that the
workability of the fresh concrete is suitable for the conditions of handling and placing so that
after compaction it surrounds all reinforcement and completely fills the formwork. When
concrete is hardened, it shall have the required strength, durability and surface finish.
e. The quantity of water shall be just sufficient to produce a dense concrete of required
workability Cohesiveness, durability and strength for the job. An accurate and strict control
shall be kept on the quantity of water.
f. A mix shall be designed to produce the grade of concrete having the required workability and
cohesiveness and characteristic strength not less than that stipulated in IS 456-2000. However,
due to change in design mix, if it becomes obligatory to use less or more cement per cubic meter
of concrete, the contractor shall do the same without claiming any extra cost for using of extra
cement. In case of actual use being less than the cement level specified in table Col.No.5, the
SSNNL shall deduct the cost of cement from the bill at the base price of star rates and rate
analysis is per ton of cement used at worksite for the reduced consumption of OPC. The
contractor will not be paid in any case any extra amount for the increase in use of OPC cement
i.e. for more than one cement level specified in the Col.No.5 of above
g. In the case of reinforced concrete work, workability shall be such that the concrete surrounds
and properly grips all reinforcement. The degrees of consistency, which shall depend upon the
nature of work and methods of vibration of concrete shall be determined by regular slump
tests. Following slumps shall be adopted for different types of works.
Sr. Type of work Slumps
1 Mass concrete for RCC raft 45 to
foundations, footings and 55 mm
retaining walls
2 Beams, slabs & columns, syphon 25 to
barrel, transition walls 40 mm
3 Thin RCC section with 60 to
congested steel 70 mm
4 Baffle wall chute blocks and sills 25 to
N.B. (1) Slump test shall carry out at location of placing of concrete.
(2) In case pump concrete is used slump shall be between 100mm and 120mm.
8 PRODUCTION OF CONCRETE
Production of Aggregates.
Production of aggregates may include quarrying of the raw material and processing viz,
transporting, crushing, screening and washing. Water used for washing aggregates shall be
clean and free from alkali, salts and other impurities. After washing, fine aggregates must be
stored in stockpiles with a free draining base for at least 3 days to ensure that aggregates
delivered to the batching plant will have reasonably uniform moisture content. The storage and
handling shall be in such a manner as to prevent inter-mingling of various sizes of aggregates
required separately for grading purposes. No foreign matter shall be allowed to be mixed up
with the aggregates.
(a) The batching and mixing plant / fiori shall be fully automatic and will automatically
start the weighing operation of materials and stop automatically when designated weight of
each material is reached and interlock in a manner as specified in IS :4925 – 1968.Only one
batching plant shall not be allowed. The wet mixing of the concrete shall be done in mixer
attached with batching plant. In no case mixing shall be allowed outside the batching and
mixing plant i.e. mixing will not be allowed in transit mixture. The semi automatic or manually
operated batching and mixing plant will not be allowed for controlled concrete.
(b) The prescribed amount of the various materials of concrete including water, cement
the grouping of fine aggregates and each individual size of coarse aggregate shall be measured
and controlled within the specified limits of accuracy. The amount of water, cement and
aggregate shall be determined by weighing. In the case of fine aggregates, the surface moisture
shall be determined in accordance with the method prescribed in Appendix – D of IS: 456:
and its subsequent amendments or publications. In the case of coarse aggregates, percentage
of free water shall be determined by weighing a representative sample, then surface drying
each particle individually with a clean piece of cloth and re-weighing.
Necessary arrangement for silos or other arrangement shall be made for Ordinary
Portland Cement.
(c) The proportions of various materials shall be changed as directed in order to maintain
the desired quality of the concrete. The batching equipment shall be constructed and operated
so that the combined accuracies in feeding and measuring the materials shall not exceed
percent for water and cement and 2 percent for each size of aggregate.
(d) The operating performance of each scale or other measuring device shall be checked
by standard test weight to be supplied by contractor and the test weight shall be got calibrated
by the contractor and the tests shall cover the range of measurements involved in the batching
operations. Tests of equipment in operation shall be made at least once every fortnight and
adjustments, repairs or replacement, be made as necessary to meet the specified requirement
for accuracy of measurement.
(e) Aggregates shall not be batched for concrete or mortar when free water is dripping
from the aggregates.
(f) Before the concreting operation starts the contractor shall provide communication
facility in form of wireless, walki – talki or telephone between the batching and mixing plant
and site of various concrete placements and got approved by the Engineer - in - Charge. It will
be the contractor's responsibility to keep this system in good and working condition
throughout the construction period.
The kind of cement such as Ordinary Portland Cement shall be used in the work requirement
and as decided by Engineer-In-Charge. In order to prepare the concrete mix with the specified
cement, such arrangement shall be made in the batching plant at site of the work.
(a) The Concrete shall be mixed in B & M Plant / fiori with weigh batching facility. The
mixing shall result in a homogeneous mix of uniform colour where in the coarse aggregate is
uniformly coated with the paste of cement and sand. The mixing shall be done for at least two
minutes after the ingradients are placed in drums. The mixing time will be increased in case;
required uniformity is not obtained in the mix. The mixing shall be continued until there is a
uniform distribution of the materials and Mass is uniform in colour and consistency. If there is
segregation after unloading from the mixer, the concrete should be remixed.
Note:- In no case “Hand-Mixer” shall be allowed
(b) The concrete ingredients shall be mixed thoroughly in batch mixers of satisfactory type
and size, which are so designed as to ensure uniform distribution of all the constituent
materials throughout the mass at the end of the mixing period. The plant shall be so designed
and operated that all materials entering the mixer can be accurately proportioned and readily
controlled. The entire batch within the mixer shall be discharged before recharging. The
volume of mixed materials per batch shall not exceed the rated capacity. A mixer will be
considered unsatisfactory, if from three tests of any one batch, a change in slump exceeding
mm or change in air content exceeding one percent is noticed between representative samples
taken at different portions of the mixer discharge.
(c) For any one batch, uniformity of fresh concrete weight of air free mortar of two
samples, one taken at the front and one at the end of the mixer discharges, when determined
in accordance with the provisions of the mixer performance tests, designation 26 in the
Appendix, Concrete Manual – Eighth Edition, Revised – 1981, United States Bureau of
Reclamation shall not exceed 1.6 percent of the mean value. The adequacy of mixing shall also
be determined in accordance with "Method of sampling and analysis of concrete" as per IS:
1199 – 1959 and its subsequent amendments. Excessive variation on the unit weight of air free
mortar indicates that mixing time should be increased. Mixer efficiency tests shall be made at
the start of a job and at such intervals as may be necessary to ensure compliance with the
requirements for effective mixing. The minimum mixing time specified herein may be reduced
if mixer efficiency tests confirm that the reduced time permits satisfactory mixing.
(d) The first concrete batch at the start of continuous mixing operation or after a lapse of
30 minutes in continuous mixing operation shall be made richer by the addition of extra cement
as directed. No extra payment shall be done for the extra cement to be used in starting mix of
(e) For any one batch, the difference between the unit weight of coarse aggregate from
concrete samples from the front and end of the mixer discharge, when determined in
accordance with the above mentioned mixer performance test shall not exceed 10 percent of
the mean value.
(f) The mixing of each batch shall continue, for not less than the period stated in Table – I
of IS : 457 – 1957 as shown below, unless tests of mixer performance show that variation in
the prescribed time is necessary or acceptable. Each mixer shall have a timing device for
indicating the completion of the required mixing period.
The mixer shall have 15 to 20 revolutions per minute.
Capacity of Minimum time of mixing
Mixer Material Manufactured
Aggregate aggregates
3 m3 or larger 2 minutes 2.5minutes
2 m3 1.5 minutes 2.0 minutes
1 m3 or smaller 1.25 minutes 1.5 minutes
(g) The actual time of mixing shall be checked at least twice during each shift and the
timing device shall be adjusted if there is error. The timing device shall be so interlocked with
the discharge gate of the batch hopper that the timing does not start until the discharge gate is
fully closed and all ingredients are in the drum. A suitable record shall be kept of the average
time consumed in charging, mixing and discharging a batch during each run.
(h) The full contents of the drum shall be discharged quickly to avoid segregation.
(i) The minimum mixing periods specified are considered on the materials being fed into
the mixer in a manner which will facilitate efficient mixing and an operation of the mixer at its
designed speed. The following sequence of charging the mixer may be adopted.
(i) Five to ten percent of the total quantity of water required for mixing, adequate to wet
the drum thoroughly, shall be introduced before the other ingredients in order to
prevent any caulking of the cement on the blades or sides of the mixer.
(ii) All dry ingredients (cement and fine and coarse aggregates) shall be simultaneously fed
into the mixer in such a manner that the period of flow for each ingredient is about the
same. Eighty to ninety percent of the total quantity of water required for mixing shall
be added uniformly along with the dry ingredients.
(iii) The remaining quantity of water shall be added after all the other ingredients are in the
(iv) Portion of the coarse aggregates, however, may be added last. This facilitates clearance
of the chutes and removes any fine aggregate or cement adhering to the sides.
(j) Excessive mixing, requiring additions of water to preserve the required concrete
consistency shall not be permitted. Concrete which has been kept unused for more than
minutes after the addition of water shall be rejected unless the concrete is in such a condition
that it can be subsequently vibrated in place and its use is specifically permitted.
(k) When the mixer is stopped, before placing again any ingredients in the mixer, all
hardened concrete or mortar shall be removed from the inner surface of the mixer.
(l) The re-tempering of partially hardened concrete or mortar requiring renewed mixing
with or without the addition of cement, aggregate or water shall not be permitted.
3.8.4 Consistency;
The quantity of water to be used in the concrete shall be determined from time to time
during the course of concreting work in order to secure concrete of proper consistency
and also adjust for any variation in the moisture content or grading of the aggregates
as they enter the mixer. Addition of water to compensate the stiffening of the concrete
resulting from over mixing or objectionable drying before placing shall not be
permitted. Uniformity in concrete consistency from batch to batch shall be ensured.
Where concrete is laid from the bottom to the top of the slope, the consistency shall be
such that the concrete will just stay in place on the slope. A slump of 25 to 75 mm shall
generally be allowed. For heavier longitudinally operating slip from machines, a slump
of 50 mm shall be permitted. To have a close control of consistency and workability of
the concrete, the slump of concrete shall not vary more than 20 mm from the one
specified above as it would otherwise interfere with the progress and quality of the
9 TEMPERATURE OF CONCRETE AND WEATHER CONDITIONS.
The temperature of concrete at the time of placement, temperature not less than 60C
not more 320 C .Concreting operation shall be temporarily suspended during
excessively hot weather when the air temperature exceeds 450 C when conditions are
such that the concrete cannot be placed at the required temperature. Wherever
necessary, exposed surfaces or fresh concrete shall be adequately shaded from the
direct rays of the sun and protected against premature setting or drying by curing
under continuous fine spray of water.
10 TRANSPORTING CONCRETE
(a) Concrete shall be transported from the mixing plant to the placing position as rapidly
as practicable by methods that will prevent segregation or loss of ingredients or slump loss in
excess of 25 mm and / or a loss in air content of more than one percent before the concrete is
placed in the works. Irrespective of haul distance, suitable agitators or transit mixers shall be
used for conveying concrete. Conveying concrete in open truck or dumpers or head load shall
not be permitted in any case.
(b) If buckets are used for conveying low slump concrete they shall be capable of
promoting discharge in controlled quantities without splashing or segregating and shall be of
such capacity that there is no splitting of batches in loading buckets. Buckets shall be of the
bottom dump type permitting an even and controlled flow into the form or hopper without
undue splashing or segregation. Conveying vehicles shall be designed to facilitate uniform
delivery rather than quick dumping. For major pour use of crane and bucket for placement of
concrete particularly in syphon structure will not be allowed, where only concrete pumps or
belt crates to achieve a minimum rate of placement of 15 to 20 m3 / hour shall be used.
(c) Chutes used for conveying concrete shall be of such size and shape as to ensure a
steady uniform flow of concrete in a compact mass without separation or loss of ingredients
and shall be protected from wind and sun where necessary to prevent loss of slump by
evaporation, and shall be furnished with a discharge hopper. Free fall or drop of concrete shall
be limited to 150 cm. Chute sections shall be made of or lined with metal and all runs shall have
approximately the same slopes not flatter than 1 vertical to 2.5 horizontal. The required
consistency of concrete shall not be changed in order to facilitate chuting. Where it becomes
necessary to change the consistency, the concrete mix shall be completely
redesigned. Wherever there is a free fall within the conveying system, suitable baffle plates,
splash boards or down spouts shall be provided to prevent segregation, splashing or loss of
ingredients. Whenever it is necessary to hold the discharge end of a chute more than 3 metres
above the level of the fresh concrete, a flexible down spout shall be used to break the fall and
confine the flow. The lower end of the spout shall be held close to the place of deposit,
wherever depositing is intermittent, a discharge hopper shall be provided. All chutes shall be
thoroughly cleaned before and after each run. All wash water and debris shall be disposed off
outside the forms. Use of chutes shall be allowed in exceptional circumstances and adverse
placement conditions only.
(d) Placement of concrete by pumpcretes has made a rapid technological advancement. It
is an acceptable method if properly planned and backed with appropriate state of art,
equipment and accessories. The principal requirement is to achieve requisite workability and
strength at the prescribed cement level. Slump is the critical factor in concrete placement by
pump cretes. In the context of attaining designed strength at the prescribed cement level and
at the same time without raising water cement ratio for making the concrete mix workable
enough for smooth pumping, use of super plasticisers may become essential. The contractor
has to deploy pumpcretes for majority concrete. Placement shall provide minimum one pump
set for each structure. Use of super plasticisers for attaining the required workability within
the requisite parameter evolved through mix design studies to the full satisfaction of Engineer-
in-Charge; he shall be allowed to do so. Before using super plasticisers necessary approval from
the Engineer-in-Charge shall be taken. No extra payment shall be made for such arrangements.
(e) Alternatively properly designed Belt-cretes capable to cover full width one monolith
shall be allowed to be used for conveying concrete for placement in the structures. Belt-cretes
shall ensure an adequate and steady uniform flow of concrete in a compact mass without any
segregation and shall have a discharge hopper with a flexible down spout as to ensure concrete
placement as close to place of deposit as possible and in no case more than about a metre.
(f) Equipment used for transporting concrete from the mixer to the forms shall be
maintained free from deposits of stiff concrete and leakage of mortar. Batch container, transit
mixers, agitators, chutes concrete pump, pipelines and discharge hoppers shall be thoroughly
cleaned after each run. All wash water and debris shall be disposed off outside the forms.
11 PREPARATION FOR PLACING CONCRETE
General Requirement
a. Concrete shall not be placed until all form work required is completed, embedded parts, if any,
installed and checked and surfaces prepared for placing. No concrete shall be deposited until the
foundation has been inspected and approved by the Engineer - in - Charge / competent authority.
b. All surface of forms and embedded materials that have become encrusted with dried mortar or
grout from concrete previously placed shall be cleaned of all such mortar or grout before fresh concrete
PLACING AND COMPACTING CONCRETE
a. After the surface has been cleaned and dampened as specified surface of rock and construction
joint shall be covered, wherever practicable, with a layer of mortar approximately 15 mm to 20 mm
thick. The mortar shall have the same proportions of water, air entraining agent if any, cement and fine
aggregate as the concrete mixture which is to be placed upon it. The water cement ratio of the mortar
which is placed shall not exceed that of the concrete to be placed upon it, and the consistency of the
mortar shall be suitable for being spread uniformly and worked thoroughly in to all irregularities of
b. So far as it is practicable, concrete shall be placed directly in its final position using mechanical
means and approved method and shall not be caused to flow in a manner to permit or cause
segregation. Methods and equipments employed in placing concrete shall ensure that aggregate shall
not be separated from the concrete mass.
c. In placing mass concrete in a lift successive batcher of concrete shall be placed in a systematic
arrangement in order to avoid long exposure of parts of the live surfaces of a concrete layer. Concrete
surface, particularly formed surface, upon or against which additional concrete is to be placed shall be
chipped and roughened to a depth of not more than 2.5 cm from the surface . The roughening shall be
performed by chipping and in such a manner as not to loosen or shatter any part of the concrete beyond
the roughened surface. After being roughened the surface of the concrete shall be cleaned
thoroughly of all loose fragments, dirt, lime and other objectionable material and shall be sound, hard
and in such condition as to ensure good mechanical bond between old and new concrete. All concrete
which is not hard, dence and durable shall be removed to the depth required to secure a satisfactory
d. In mass concrete placement, delay may occur resulting in cold joints within a lift. When
placement is resumed while concrete is still green (and therefore capable of ready bonding) that it can
be dug out with a hand pick, the usual construction joint treatment will not be required if the surfaces
are kept moist and the concrete placed against the surface is thoroughly and systematically vibrated
over the entire area adjacent to the older concrete. If the delay is short enough to permit penetration
of the vibrator in to the lower layer during the routine vibration of successive layer, the vibration will
ensure necessary bonding.
e. If, for any reason the working surface is left exposed until it has hardened to a considerable
extent, it shall be left to set and cured for not less than 56 hours or longer. If for any reason a strength
greater than 15.2 Kg. / cm2 has been attained before completing the lift, the surface thus interrupted
shall be given a through clean up as for normal lift joint surface and the work shall be commenced with
a mortar layer as specified.
f. In placing mass concrete, the exposed area of fresh concrete shall be maintained at the practical
minimum by first building up the concrete in successive approximately horizontal layers to the full
width of the block and to full height of the lift over a restricted area at the downstream end of the
block and then continuing upstream in similar progressive stages to the full area. The slope formed by
the unconfined upstream edge of the successive layers of concrete shall be kept as steep as practicable
in order to keep its area minimum. Concrete along these edge shall not be vibrated until adjacent
concrete in the layer is placed, except that it shall be vibrated immediately when weather condition are
such that the concrete harden to an extent the latter vibration may not fully consolidate and integrate
it with more recently placed adjacent concrete.
g. Manual concrete placing by head basket shall not be permitted. The concrete shall be used
within 30 minutes of mixing. Re-tempering of concrete shall not be permitted. Any concrete which has
become so stiff that proper placing without re-tempering can not be ensured shall be wasted.
h. In formed work, structural concrete placement shall generally be started with an over sanded
mix containing 20 mm maximum size aggregate and an extra sack of cement for one cubic metre and
having a 125 mm slump placed several centimeters deep on the joints at the bottom of the from.
Concrete placement shall commence immediately thereafter. No extra payment shall be done for the
use of extra cement to be used in the starting mix of concrete.
i. Concrete shall be compacted to the maximum practicable density, in such a manner that it is
free from pockets of coarse aggregate and is in intimate contact with surface of forms and embedded
materials. Unless otherwise permitted, all concrete shall be compacted by mechanical vibrator. The
vibration of the concrete shall be adequate and efficiently performed for which sufficient numbers of
vibrators of required capacities shall be in working order before start of the concrete work. Form for
walls shall have surface vibrators attached with the form works. For walls form shall be used for lift
height shown in the drawings and concrete shall be completed with surface vibrators attached to the
j. Compaction of concrete shall whenever practicable, be carried out by the use of immersion
type Vibrators. Vibrators having vibrating heads of 100mm or more in diameter shall be operated at
speed of at least 6000 vibrations per minute when immersed in the concrete.
k. Vibrators having vibrating heads less than 100 mm in diameter shall be operated at speed of
at least 7000 vibration per minute in the concrete. Normally form work shall be designed to provide
for the insertion and operation of mechanical vibrators in the placed concrete. Form vibrators shall be
used wherever internal vibration is not possible or would be inadequate.
l. In compacting each layer of concrete, the vibrator shall be operated in almost vertical position
and the vibrating head shall be allowed to penetrate and re-vibrate the concrete in the upper portion
of the underlying layers. The area where freshly placed concrete in each layer joints previously placed
contacts, more vibration then usual shall be performed the vibrators penetrating deeply at close
intervals along these contours. Layers of concrete shall not be placed until layers previously placed
have been vibrated thoroughly as specified. Contacts of the vibrating head with the surface of the forms
shall be avoided.
m. During placing and until curing is completed, the concrete shall be protected against the
harmful effects of exposure to sunlight, wind and rain as directed.
n. If concrete is placing monolithically around opening having vertical dimensions greater than
0.6 m, or if concrete in deck slab floor, slabs, beams, girders, or other similar parts of a structure is
placed monolithically with supporting concrete, the following instruction shall be strictly observed.
i. Placing of concrete shall be delayed not less than one hour or more than three hours at the top of
opening and at the bottom of fillets under decks, floor slabs, beams girders, or other similar parts
of a structure when fillets are specified and at the bottom of such structural member when fillets
are not specified but in no case shall the placing be delayed so long that the vibrating unit will not
of it own weight readily penetrate the concrete placed before the delay. When consolidating
concrete placed after the delay , the vibrating unit shall penetrate or vibrate the concrete placed
before the delay the last 0.6 m or more or concrete placed immediately before the delay shall be
placed with as low slump as practicable and shall be thoroughly compacted .
ii The surfaces of concrete where delays are made shall be cleaned and free from loose and foreign
materials when concrete placing is started after the delay.
iii. Concrete placed over an opening in decks, floor, beams, girders, and other similar parts of
structures shall be placed with as low slump as practicable. Maximum 3 joints shall be allowed in
vertical joints.
iv Precast concrete blocks shall be made concrete grade M-15 as per construction stage drawing and
directed by Engineer-In-Charge. The specification shall apply as specified in various para in this
section. The concrete blocks shall be placed at appropriate places show in the construction stage
drawing and as directed by Engineer-In-Charge.
12 CURING OF CONCRETE.
(a) All equipment, material etc. needed for curing and protection of concrete shall be at hand and
ready for installing before actual concreting begins. Detailed plans, methods and procedures
whereby the various phases of curing and protection shall be firmly established, shall be settled
and got approved in writing from the Engineer-in-Charge sufficiently in advance of the actual
concreting. The equipment and method proposed to be utilized shall provide for adequate
control and avoid interruption or damage to the work of other agencies. On each structure
water tank of sufficient and approved capacity shall be provided.
(b) All concrete shall be cured by water in accordance with the requirement of sub-clause 3.16.2
a. Unformed top surface of walls and piers shall be moistened by covering with water saturated
material or by other effective means as soon as the concrete has hardened sufficiently to prevent
damage by water. These surfaces and steeply sloping and vertical formed surfaces shall be kept
completely and continuously moist prior to and during form removal, by water applied on the
unformed top surfaces and allowed to pass down between the forms and the formed concrete
faces. This procedure shall be followed by the specified water curing
b. Concrete cured with water shall be kept wet for at least 14 days immediately following
placement of the concrete or until covered with fresh concrete by covering with water saturated
material or by a system of perforated pipes or mechanical sprinklers or porous hoses or by any other
suitable method which will keep all surfaces continuously (not periodically) wet.
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